13318375 has 32 divisors (see below), whose sum is σ = 19648512. Its totient is φ = 8820000.

The previous prime is 13318369. The next prime is 13318379. The reversal of 13318375 is 57381331.

It is a happy number.

It is not a de Polignac number, because 13318375 - 2³ = 13318367 is a prime.

It is a super-2 number, since 2×13318375² = 354758225281250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13318379) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26880 + ... + 27370.

It is an arithmetic number, because the mean of its divisors is an integer number (614016).

Almost surely, 2^13318375 is an apocalyptic number.

13318375 is a deficient number, since it is larger than the sum of its proper divisors (6330137).

13318375 is an equidigital number, since it uses as much as digits as its factorization.

13318375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 534 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 13318375 is about 3649.4348877600. The cubic root of 13318375 is about 237.0375117916.

The spelling of 13318375 in words is "thirteen million, three hundred eighteen thousand, three hundred seventy-five".