12500312 has 16 divisors (see below), whose sum is σ = 25569000. Its totient is φ = 5681920.

The previous prime is 12500263. The next prime is 12500329. The reversal of 12500312 is 21300521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70937 + ... + 71112.

Almost surely, 2^12500312 is an apocalyptic number.

It is an amenable number.

12500312 is an abundant number, since it is smaller than the sum of its proper divisors (13068688).

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

12500312 is a wasteful number, since it uses less digits than its factorization.

12500312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142066 (or 142062 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 12500312 is about 3535.5780291206. The cubic root of 12500312 is about 232.0813725655.

Adding to 12500312 its reverse (21300521), we get a palindrome (33800833).

The spelling of 12500312 in words is "twelve million, five hundred thousand, three hundred twelve".