131306180 has 12 divisors (see below), whose sum is σ = 275743020. Its totient is φ = 52522464.

The previous prime is 131306179. The next prime is 131306209. The reversal of 131306180 is 81603131.

It can be written as a sum of positive squares in 2 ways, for example, as 14622976 + 116683204 = 3824^2 + 10802^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3282635 + ... + 3282674.

It is an arithmetic number, because the mean of its divisors is an integer number (22978585).

Almost surely, 2^131306180 is an apocalyptic number.

131306180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131306180 is an abundant number, since it is smaller than the sum of its proper divisors (144436840).

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

131306180 is a wasteful number, since it uses less digits than its factorization.

131306180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6565318 (or 6565316 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 131306180 is about 11458.8908712842. The cubic root of 131306180 is about 508.2706774577.

The spelling of 131306180 in words is "one hundred thirty-one million, three hundred six thousand, one hundred eighty".