12957315 has 72 divisors (see below), whose sum is σ = 26038512. Its totient is φ = 5483520.

The previous prime is 12957311. The next prime is 12957317. The reversal of 12957315 is 51375921.

12957315 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12957315 - 2² = 12957311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12957311) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 212385 + ... + 212445.

It is an arithmetic number, because the mean of its divisors is an integer number (361646).

Almost surely, 2^12957315 is an apocalyptic number.

12957315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12957315 is an abundant number, since it is smaller than the sum of its proper divisors (13081197).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12957315 is a wasteful number, since it uses less digits than its factorization.

12957315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 93 counting only the distinct ones).

The product of its digits is 9450, while the sum is 33.

The square root of 12957315 is about 3599.6270640165. The cubic root of 12957315 is about 234.8758360232.

The spelling of 12957315 in words is "twelve million, nine hundred fifty-seven thousand, three hundred fifteen".