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1252125 = 3353753
BaseRepresentation
bin100110001101100011101
32100121121000
410301230131
5310032000
642500513
713433340
oct4615435
92317530
101252125
11785816
12504739
1334ac04
14248457
1519b000
hex131b1d

1252125 has 64 divisors (see below), whose sum is σ = 2695680. Its totient is φ = 561600.

The previous prime is 1252123. The next prime is 1252129. The reversal of 1252125 is 5212521.

1252125 = 613 + 623 + ... + 653.

It is not a de Polignac number, because 1252125 - 21 = 1252123 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1252098 and 1252107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23599 + ... + 23651.

It is an arithmetic number, because the mean of its divisors is an integer number (42120).

21252125 is an apocalyptic number.

1252125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1252125 is an abundant number, since it is smaller than the sum of its proper divisors (1443555).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1252125 is an equidigital number, since it uses as much as digits as its factorization.

1252125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84 (or 68 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 1252125 is about 1118.9839140935. The cubic root of 1252125 is about 107.7827422598.

Adding to 1252125 its reverse (5212521), we get a palindrome (6464646).

The spelling of 1252125 in words is "one million, two hundred fifty-two thousand, one hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 27 35 45 53 63 75 105 125 135 159 175 189 225 265 315 371 375 477 525 675 795 875 945 1113 1125 1325 1431 1575 1855 2385 2625 3339 3375 3975 4725 5565 6625 7155 7875 9275 10017 11925 16695 19875 23625 27825 35775 46375 50085 59625 83475 139125 178875 250425 417375 1252125