131555080 has 32 divisors (see below), whose sum is σ = 297999000. Its totient is φ = 52266496.

The previous prime is 131555077. The next prime is 131555087. The reversal of 131555080 is 80555131.

It can be written as a sum of positive squares in 4 ways, for example, as 113763556 + 17791524 = 10666^2 + 4218^2 .

It is not an unprimeable number, because it can be changed into a prime (131555087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5077 + ... + 16996.

Almost surely, 2^131555080 is an apocalyptic number.

131555080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131555080 is an abundant number, since it is smaller than the sum of its proper divisors (166443920).

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

131555080 is a wasteful number, since it uses less digits than its factorization.

131555080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22233 (or 22229 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 131555080 is about 11469.7462918759. The cubic root of 131555080 is about 508.5916288921.

The spelling of 131555080 in words is "one hundred thirty-one million, five hundred fifty-five thousand, eighty".