12625631 has 2 divisors, whose sum is σ = 12625632. Its totient is φ = 12625630.

The previous prime is 12625609. The next prime is 12625651. The reversal of 12625631 is 13652621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12625631 - 2⁶ = 12625567 is a prime.

It is a super-2 number, since 2×12625631² = 318813116296322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12625631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12625601) 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, 6312815 + 6312816.

It is an arithmetic number, because the mean of its divisors is an integer number (6312816).

Almost surely, 2^12625631 is an apocalyptic number.

12625631 is a deficient number, since it is larger than the sum of its proper divisors (1).

12625631 is an equidigital number, since it uses as much as digits as its factorization.

12625631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

The square root of 12625631 is about 3553.2563937887. The cubic root of 12625631 is about 232.8543546299.

The spelling of 12625631 in words is "twelve million, six hundred twenty-five thousand, six hundred thirty-one".