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1224031 is a prime number
BaseRepresentation
bin100101010110101011111
32022012001111
410222311133
5303132111
642122451
713255414
oct4526537
92265044
101224031
117666a6
124b0427
1333b1a3
1423c10b
15192a21
hex12ad5f

1224031 has 2 divisors, whose sum is σ = 1224032. Its totient is φ = 1224030.

The previous prime is 1224029. The next prime is 1224053. The reversal of 1224031 is 1304221.

It is a weak prime.

It is an emirp because it is prime and its reverse (1304221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1224031 - 21 = 1224029 is a prime.

It is a super-2 number, since 2×12240312 = 2996503777922, which contains 22 as substring.

Together with 1224029, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612015 + 612016.

It is an arithmetic number, because the mean of its divisors is an integer number (612016).

21224031 is an apocalyptic number.

1224031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224031 is an equidigital number, since it uses as much as digits as its factorization.

1224031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1224031 is about 1106.3593448785. The cubic root of 1224031 is about 106.9705278832.

Adding to 1224031 its reverse (1304221), we get a palindrome (2528252).

The spelling of 1224031 in words is "one million, two hundred twenty-four thousand, thirty-one".