13397031 has 6 divisors (see below), whose sum is σ = 19351280. Its totient is φ = 8931348.

The previous prime is 13397029. The next prime is 13397039. The reversal of 13397031 is 13079331.

13397031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13397031 - 2¹ = 13397029 is a prime.

It is a super-2 number, since 2×13397031² = 358960879229922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13396986 and 13397004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13397039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 744271 + ... + 744288.

Almost surely, 2^13397031 is an apocalyptic number.

13397031 is a deficient number, since it is larger than the sum of its proper divisors (5954249).

13397031 is a wasteful number, since it uses less digits than its factorization.

13397031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488565 (or 1488562 counting only the distinct ones).

The product of its (nonzero) digits is 1701, while the sum is 27.

The square root of 13397031 is about 3660.1954865826. The cubic root of 13397031 is about 237.5032302423.

The spelling of 13397031 in words is "thirteen million, three hundred ninety-seven thousand, thirty-one".