13265915 has 16 divisors (see below), whose sum is σ = 17220000. Its totient is φ = 9752832.

The previous prime is 13265911. The next prime is 13265921. The reversal of 13265915 is 51956231.

It is a cyclic number.

It is not a de Polignac number, because 13265915 - 2² = 13265911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13265911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26336 + ... + 26834.

It is an arithmetic number, because the mean of its divisors is an integer number (1076250).

Almost surely, 2^13265915 is an apocalyptic number.

13265915 is a deficient number, since it is larger than the sum of its proper divisors (3954085).

13265915 is a wasteful number, since it uses less digits than its factorization.

13265915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926.

The product of its digits is 8100, while the sum is 32.

The square root of 13265915 is about 3642.2403819627. The cubic root of 13265915 is about 236.7258784156.

The spelling of 13265915 in words is "thirteen million, two hundred sixty-five thousand, nine hundred fifteen".