13258864 has 20 divisors (see below), whose sum is σ = 25980480. Its totient is φ = 6554240.

The previous prime is 13258849. The next prime is 13258873. The reversal of 13258864 is 46885231.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3232 + ... + 6079.

It is an arithmetic number, because the mean of its divisors is an integer number (1299024).

Almost surely, 2^13258864 is an apocalyptic number.

It is an amenable number.

13258864 is a deficient number, since it is larger than the sum of its proper divisors (12721616).

13258864 is an equidigital number, since it uses as much as digits as its factorization.

13258864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9408 (or 9402 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 13258864 is about 3641.2723051153. The cubic root of 13258864 is about 236.6839300595.

It can be divided in two parts, 132 and 58864, that added together give a triangular number (58996 = T₃₄₃).

The spelling of 13258864 in words is "thirteen million, two hundred fifty-eight thousand, eight hundred sixty-four".