12522915 has 48 divisors (see below), whose sum is σ = 23003136. Its totient is φ = 6292800.

The previous prime is 12522911. The next prime is 12522929. The reversal of 12522915 is 51922521.

It is not a de Polignac number, because 12522915 - 2² = 12522911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12522911) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65470 + ... + 65660.

It is an arithmetic number, because the mean of its divisors is an integer number (479232).

Almost surely, 2^12522915 is an apocalyptic number.

12522915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12522915 is a deficient number, since it is larger than the sum of its proper divisors (10480221).

12522915 is a wasteful number, since it uses less digits than its factorization.

12522915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 277 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 12522915 is about 3538.7730924715. The cubic root of 12522915 is about 232.2211711206.

The spelling of 12522915 in words is "twelve million, five hundred twenty-two thousand, nine hundred fifteen".