12515630 has 32 divisors (see below), whose sum is σ = 23777280. Its totient is φ = 4736160.

The previous prime is 12515603. The next prime is 12515639. The reversal of 12515630 is 3651521.

It is a junction number, because it is equal to n+sod(n) for n = 12515596 and 12515605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12515639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14141 + ... + 14999.

It is an arithmetic number, because the mean of its divisors is an integer number (743040).

Almost surely, 2^12515630 is an apocalyptic number.

12515630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12515630 is a deficient number, since it is larger than the sum of its proper divisors (11261650).

12515630 is a wasteful number, since it uses less digits than its factorization.

12515630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 12515630 is about 3537.7436311864. The cubic root of 12515630 is about 232.1761321026.

The spelling of 12515630 in words is "twelve million, five hundred fifteen thousand, six hundred thirty".