13265409 has 16 divisors (see below), whose sum is σ = 18057600. Its totient is φ = 8660736.

The previous prime is 13265381. The next prime is 13265419. The reversal of 13265409 is 90456231.

It is not a de Polignac number, because 13265409 - 2¹⁵ = 13232641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13265419) 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, 36772 + ... + 37130.

It is an arithmetic number, because the mean of its divisors is an integer number (1128600).

Almost surely, 2^13265409 is an apocalyptic number.

It is an amenable number.

13265409 is a deficient number, since it is larger than the sum of its proper divisors (4792191).

13265409 is a wasteful number, since it uses less digits than its factorization.

13265409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 13265409 is about 3642.1709185594. The cubic root of 13265409 is about 236.7228685763.

The spelling of 13265409 in words is "thirteen million, two hundred sixty-five thousand, four hundred nine".