13263931 has 2 divisors, whose sum is σ = 13263932. Its totient is φ = 13263930.

The previous prime is 13263911. The next prime is 13263941. The reversal of 13263931 is 13936231.

13263931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13263931 - 2²³ = 4875323 is a prime.

It is a super-2 number, since 2×13263931² = 351863731145522, 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 13263931.

It is not a weakly prime, because it can be changed into another prime (13263911) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6631965 + 6631966.

It is an arithmetic number, because the mean of its divisors is an integer number (6631966).

Almost surely, 2^13263931 is an apocalyptic number.

13263931 is a deficient number, since it is larger than the sum of its proper divisors (1).

13263931 is an equidigital number, since it uses as much as digits as its factorization.

13263931 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 13263931 is about 3641.9680119408. The cubic root of 13263931 is about 236.7140765520.

The spelling of 13263931 in words is "thirteen million, two hundred sixty-three thousand, nine hundred thirty-one".