13932631 has 2 divisors, whose sum is σ = 13932632. Its totient is φ = 13932630.

The previous prime is 13932623. The next prime is 13932649. The reversal of 13932631 is 13623931.

13932631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13932631 - 2³ = 13932623 is a prime.

It is a super-2 number, since 2×13932631² = 388236413164322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13932631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13932601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6966315 + 6966316.

It is an arithmetic number, because the mean of its divisors is an integer number (6966316).

Almost surely, 2^13932631 is an apocalyptic number.

13932631 is a deficient number, since it is larger than the sum of its proper divisors (1).

13932631 is an equidigital number, since it uses as much as digits as its factorization.

13932631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 28.

The square root of 13932631 is about 3732.6439690922. The cubic root of 13932631 is about 240.6270120931.

The spelling of 13932631 in words is "thirteen million, nine hundred thirty-two thousand, six hundred thirty-one".