12131976 has 32 divisors (see below), whose sum is σ = 31377600. Its totient is φ = 3904320.

The previous prime is 12131963. The next prime is 12132011. The reversal of 12131976 is 67913121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8020 + ... + 9411.

It is an arithmetic number, because the mean of its divisors is an integer number (980550).

Almost surely, 2^12131976 is an apocalyptic number.

It is an amenable number.

12131976 is an abundant number, since it is smaller than the sum of its proper divisors (19245624).

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

12131976 is a wasteful number, since it uses less digits than its factorization.

12131976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17469 (or 17465 counting only the distinct ones).

The product of its digits is 2268, while the sum is 30.

The square root of 12131976 is about 3483.0986204815. The cubic root of 12131976 is about 229.7790947661.

The spelling of 12131976 in words is "twelve million, one hundred thirty-one thousand, nine hundred seventy-six".