131365680 has 40 divisors (see below), whose sum is σ = 407234352. Its totient is φ = 35030784.

The previous prime is 131365667. The next prime is 131365697. The reversal of 131365680 is 86563131.

It is a tau number, because it is divible by the number of its divisors (40).

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, 273439 + ... + 273918.

Almost surely, 2^131365680 is an apocalyptic number.

131365680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131365680 is an abundant number, since it is smaller than the sum of its proper divisors (275868672).

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

131365680 is a wasteful number, since it uses less digits than its factorization.

131365680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547373 (or 547367 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 131365680 is about 11461.4868145455. The cubic root of 131365680 is about 508.3474383497.

The spelling of 131365680 in words is "one hundred thirty-one million, three hundred sixty-five thousand, six hundred eighty".