12531980 has 12 divisors (see below), whose sum is σ = 26317200. Its totient is φ = 5012784.

The previous prime is 12531977. The next prime is 12532061. The reversal of 12531980 is 8913521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313280 + ... + 313319.

It is an arithmetic number, because the mean of its divisors is an integer number (2193100).

Almost surely, 2^12531980 is an apocalyptic number.

12531980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12531980 is an abundant number, since it is smaller than the sum of its proper divisors (13785220).

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

12531980 is a wasteful number, since it uses less digits than its factorization.

12531980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626608 (or 626606 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 12531980 is about 3540.0536719095. The cubic root of 12531980 is about 232.2771904841.

The spelling of 12531980 in words is "twelve million, five hundred thirty-one thousand, nine hundred eighty".