131628180 has 24 divisors (see below), whose sum is σ = 368559072. Its totient is φ = 35100832.

The previous prime is 131628169. The next prime is 131628197. The reversal of 131628180 is 81826131.

It is a super-2 number, since 2×131628180² = 34651955540224800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 1096842 + ... + 1096961.

It is an arithmetic number, because the mean of its divisors is an integer number (15356628).

Almost surely, 2^131628180 is an apocalyptic number.

131628180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131628180 is an abundant number, since it is smaller than the sum of its proper divisors (236930892).

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

131628180 is a wasteful number, since it uses less digits than its factorization.

131628180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193815 (or 2193813 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 131628180 is about 11472.9324934822. The cubic root of 131628180 is about 508.6858129253.

The spelling of 131628180 in words is "one hundred thirty-one million, six hundred twenty-eight thousand, one hundred eighty".