13497931 has 2 divisors, whose sum is σ = 13497932. Its totient is φ = 13497930.

The previous prime is 13497929. The next prime is 13497937. The reversal of 13497931 is 13979431.

13497931 is digitally balanced in base 3, 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 13497931 - 2¹ = 13497929 is a prime.

It is a super-2 number, since 2×13497931² = 364388282561522, which contains 22 as substring.

Together with 13497929, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13497937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6748965 + 6748966.

It is an arithmetic number, because the mean of its divisors is an integer number (6748966).

Almost surely, 2^13497931 is an apocalyptic number.

13497931 is a deficient number, since it is larger than the sum of its proper divisors (1).

13497931 is an equidigital number, since it uses as much as digits as its factorization.

13497931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 37.

The square root of 13497931 is about 3673.9530481485. The cubic root of 13497931 is about 238.0979929783.

The spelling of 13497931 in words is "thirteen million, four hundred ninety-seven thousand, nine hundred thirty-one".