12531930 has 16 divisors (see below), whose sum is σ = 30076704. Its totient is φ = 3341840.

The previous prime is 12531919. The next prime is 12531977. The reversal of 12531930 is 3913521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12531930.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208836 + ... + 208895.

It is an arithmetic number, because the mean of its divisors is an integer number (1879794).

Almost surely, 2^12531930 is an apocalyptic number.

12531930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12531930 is an abundant number, since it is smaller than the sum of its proper divisors (17544774).

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

12531930 is a wasteful number, since it uses less digits than its factorization.

12531930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417741.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 12531930 is about 3540.0466098626. The cubic root of 12531930 is about 232.2768815711.

The spelling of 12531930 in words is "twelve million, five hundred thirty-one thousand, nine hundred thirty".