12531960 has 96 divisors (see below), whose sum is σ = 46556640. Its totient is φ = 2863872.

The previous prime is 12531919. The next prime is 12531977. The reversal of 12531960 is 6913521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34 + ... + 5006.

It is an arithmetic number, because the mean of its divisors is an integer number (484965).

Almost surely, 2^12531960 is an apocalyptic number.

12531960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12531960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23278320).

12531960 is an abundant number, since it is smaller than the sum of its proper divisors (34024680).

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

12531960 is a wasteful number, since it uses less digits than its factorization.

12531960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4997 (or 4990 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 12531960 is about 3540.0508470925. The cubic root of 12531960 is about 232.2770669190.

The spelling of 12531960 in words is "twelve million, five hundred thirty-one thousand, nine hundred sixty".