131299776 has 42 divisors (see below), whose sum is σ = 376348752. Its totient is φ = 43766400.

The previous prime is 131299759. The next prime is 131299781. The reversal of 131299776 is 677992131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113400 + ... + 114551.

Almost surely, 2^131299776 is an apocalyptic number.

131299776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131299776 is an abundant number, since it is smaller than the sum of its proper divisors (245048976).

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

131299776 is a wasteful number, since it uses less digits than its factorization.

131299776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227969 (or 227956 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 131299776 is about 11458.6114342009. The cubic root of 131299776 is about 508.2624142814.

The spelling of 131299776 in words is "one hundred thirty-one million, two hundred ninety-nine thousand, seven hundred seventy-six".