13086865 has 16 divisors (see below), whose sum is σ = 17213760. Its totient is φ = 9472320.

The previous prime is 13086851. The next prime is 13086881. The reversal of 13086865 is 56868031.

It is not a de Polignac number, because 13086865 - 2⁷ = 13086737 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14806 + ... + 15664.

It is an arithmetic number, because the mean of its divisors is an integer number (1075860).

Almost surely, 2^13086865 is an apocalyptic number.

It is an amenable number.

13086865 is a deficient number, since it is larger than the sum of its proper divisors (4126895).

13086865 is a wasteful number, since it uses less digits than its factorization.

13086865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 13086865 is about 3617.5772279248. The cubic root of 13086865 is about 235.6560211932.

The spelling of 13086865 in words is "thirteen million, eighty-six thousand, eight hundred sixty-five".