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125140 = 2256257
BaseRepresentation
bin11110100011010100
320100122211
4132203110
513001030
62403204
71030561
oct364324
9210584
10125140
1186024
1260504
1344c62
1433868
152712a
hex1e8d4

125140 has 12 divisors (see below), whose sum is σ = 262836. Its totient is φ = 50048.

The previous prime is 125131. The next prime is 125141. The reversal of 125140 is 41521.

It can be written as a sum of positive squares in 2 ways, for example, as 94864 + 30276 = 308^2 + 174^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 125140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3109 + ... + 3148.

It is an arithmetic number, because the mean of its divisors is an integer number (21903).

2125140 is an apocalyptic number.

125140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125140 is an abundant number, since it is smaller than the sum of its proper divisors (137696).

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

125140 is a wasteful number, since it uses less digits than its factorization.

125140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6266 (or 6264 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 125140 is about 353.7513250859. The cubic root of 125140 is about 50.0186597021.

Adding to 125140 its reverse (41521), we get a palindrome (166661).

The spelling of 125140 in words is "one hundred twenty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 6257 12514 25028 31285 62570 125140