12915265 has 24 divisors (see below), whose sum is σ = 17445888. Its totient is φ = 9102240.

The previous prime is 12915263. The next prime is 12915281. The reversal of 12915265 is 56251921.

12915265 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12915265 - 2¹ = 12915263 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12915263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101632 + ... + 101758.

It is an arithmetic number, because the mean of its divisors is an integer number (726912).

Almost surely, 2^12915265 is an apocalyptic number.

It is an amenable number.

12915265 is a deficient number, since it is larger than the sum of its proper divisors (4530623).

12915265 is a wasteful number, since it uses less digits than its factorization.

12915265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 186 counting only the distinct ones).

The product of its digits is 5400, while the sum is 31.

The square root of 12915265 is about 3593.7814346451. The cubic root of 12915265 is about 234.6214820871.

It can be divided in two parts, 1291 and 5265, that added together give a palindrome (6556).

The spelling of 12915265 in words is "twelve million, nine hundred fifteen thousand, two hundred sixty-five".