13397518 has 16 divisors (see below), whose sum is σ = 20845440. Its totient is φ = 6451200.

The previous prime is 13397509. The next prime is 13397533. The reversal of 13397518 is 81579331.

It is a happy number.

13397518 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17038 + ... + 17806.

It is an arithmetic number, because the mean of its divisors is an integer number (1302840).

Almost surely, 2^13397518 is an apocalyptic number.

13397518 is a deficient number, since it is larger than the sum of its proper divisors (7447922).

13397518 is a wasteful number, since it uses less digits than its factorization.

13397518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083.

The product of its digits is 22680, while the sum is 37.

The square root of 13397518 is about 3660.2620124794. The cubic root of 13397518 is about 237.5061080608.

The spelling of 13397518 in words is "thirteen million, three hundred ninety-seven thousand, five hundred eighteen".