13265138 has 16 divisors (see below), whose sum is σ = 20331864. Its totient is φ = 6489600.

The previous prime is 13265137. The next prime is 13265149. The reversal of 13265138 is 83156231.

13265138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12581209 + 683929 = 3547^2 + 827^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13265138.

It is not an unprimeable number, because it can be changed into a prime (13265137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19256 + ... + 19932.

Almost surely, 2^13265138 is an apocalyptic number.

13265138 is a deficient number, since it is larger than the sum of its proper divisors (7066726).

13265138 is a wasteful number, since it uses less digits than its factorization.

13265138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877.

The product of its digits is 4320, while the sum is 29.

The square root of 13265138 is about 3642.1337152828. The cubic root of 13265138 is about 236.7212565558.

The spelling of 13265138 in words is "thirteen million, two hundred sixty-five thousand, one hundred thirty-eight".