12508715 has 16 divisors (see below), whose sum is σ = 15634080. Its totient is φ = 9596160.

The previous prime is 12508703. The next prime is 12508723. The reversal of 12508715 is 51780521.

It is a de Polignac number, because none of the positive numbers 2^k-12508715 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40592 + ... + 40898.

It is an arithmetic number, because the mean of its divisors is an integer number (977130).

Almost surely, 2^12508715 is an apocalyptic number.

12508715 is a deficient number, since it is larger than the sum of its proper divisors (3125365).

12508715 is a wasteful number, since it uses less digits than its factorization.

12508715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622.

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 12508715 is about 3536.7661783047. The cubic root of 12508715 is about 232.1333644132.

The spelling of 12508715 in words is "twelve million, five hundred eight thousand, seven hundred fifteen".