131979696 has 80 divisors (see below), whose sum is σ = 358905600. Its totient is φ = 41730304.

The previous prime is 131979689. The next prime is 131979737. The reversal of 131979696 is 696979131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81325 + ... + 82931.

It is an arithmetic number, because the mean of its divisors is an integer number (4486320).

Almost surely, 2^131979696 is an apocalyptic number.

131979696 is a gapful number since it is divisible by the number (16) 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 131979696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179452800).

131979696 is an abundant number, since it is smaller than the sum of its proper divisors (226925904).

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

131979696 is a wasteful number, since it uses less digits than its factorization.

131979696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706 (or 1700 counting only the distinct ones).

The product of its digits is 551124, while the sum is 51.

The square root of 131979696 is about 11488.2416409127. The cubic root of 131979696 is about 509.1382293831.

The spelling of 131979696 in words is "one hundred thirty-one million, nine hundred seventy-nine thousand, six hundred ninety-six".