13265121 has 16 divisors (see below), whose sum is σ = 18123840. Its totient is φ = 8627520.

The previous prime is 13265081. The next prime is 13265123. The reversal of 13265121 is 12156231.

It is not a de Polignac number, because 13265121 - 2⁹ = 13264609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13265123) by changing a digit.

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, 31450 + ... + 31868.

It is an arithmetic number, because the mean of its divisors is an integer number (1132740).

Almost surely, 2^13265121 is an apocalyptic number.

It is an amenable number.

13265121 is a deficient number, since it is larger than the sum of its proper divisors (4858719).

13265121 is a wasteful number, since it uses less digits than its factorization.

13265121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656.

The product of its digits is 360, while the sum is 21.

The square root of 13265121 is about 3642.1313814853. The cubic root of 13265121 is about 236.7211554320.

The spelling of 13265121 in words is "thirteen million, two hundred sixty-five thousand, one hundred twenty-one".