131764656 has 40 divisors (see below), whose sum is σ = 341337280. Its totient is φ = 43799616.

The previous prime is 131764649. The next prime is 131764727. The reversal of 131764656 is 656467131.

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, 14571 + ... + 21813.

It is an arithmetic number, because the mean of its divisors is an integer number (8533432).

Almost surely, 2^131764656 is an apocalyptic number.

131764656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131764656 is an abundant number, since it is smaller than the sum of its proper divisors (209572624).

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

131764656 is a wasteful number, since it uses less digits than its factorization.

131764656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7633 (or 7627 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 131764656 is about 11478.8786908827. The cubic root of 131764656 is about 508.8615590444.

The spelling of 131764656 in words is "one hundred thirty-one million, seven hundred sixty-four thousand, six hundred fifty-six".