13117975 has 24 divisors (see below), whose sum is σ = 17693312. Its totient is φ = 9590400.

The previous prime is 13117969. The next prime is 13118003. The reversal of 13117975 is 57971131.

13117975 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13117975 - 2²³ = 4729367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13117975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58714 + ... + 58936.

Almost surely, 2^13117975 is an apocalyptic number.

13117975 is a deficient number, since it is larger than the sum of its proper divisors (4575337).

13117975 is a wasteful number, since it uses less digits than its factorization.

13117975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 422 counting only the distinct ones).

The product of its digits is 6615, while the sum is 34.

The square root of 13117975 is about 3621.8745146678. The cubic root of 13117975 is about 235.8426066795.

The spelling of 13117975 in words is "thirteen million, one hundred seventeen thousand, nine hundred seventy-five".