131625720 has 48 divisors (see below), whose sum is σ = 427784760. Its totient is φ = 35100096.

The previous prime is 131625719. The next prime is 131625731. The reversal of 131625720 is 27526131.

It is a happy number.

131625720 is a `hidden beast` number, since 1 + 31 + 62 + 572 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182454 + ... + 183173.

Almost surely, 2^131625720 is an apocalyptic number.

131625720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131625720 is an abundant number, since it is smaller than the sum of its proper divisors (296159040).

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

131625720 is a wasteful number, since it uses less digits than its factorization.

131625720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365644 (or 365637 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 131625720 is about 11472.8252841225. The cubic root of 131625720 is about 508.6826439613.

The spelling of 131625720 in words is "one hundred thirty-one million, six hundred twenty-five thousand, seven hundred twenty".