13087165 has 32 divisors (see below), whose sum is σ = 19756800. Its totient is φ = 8269632.

The previous prime is 13087157. The next prime is 13087169. The reversal of 13087165 is 56178031.

It is not a de Polignac number, because 13087165 - 2³ = 13087157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13087169) 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, 22002 + ... + 22588.

It is an arithmetic number, because the mean of its divisors is an integer number (617400).

Almost surely, 2^13087165 is an apocalyptic number.

It is an amenable number.

13087165 is a deficient number, since it is larger than the sum of its proper divisors (6669635).

13087165 is an equidigital number, since it uses as much as digits as its factorization.

13087165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 13087165 is about 3617.6186919022. The cubic root of 13087165 is about 235.6578218859.

The spelling of 13087165 in words is "thirteen million, eighty-seven thousand, one hundred sixty-five".