131450556 has 24 divisors (see below), whose sum is σ = 307891584. Its totient is φ = 43649200.

The previous prime is 131450521. The next prime is 131450567. The reversal of 131450556 is 655054131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17670 + ... + 23981.

It is an arithmetic number, because the mean of its divisors is an integer number (12828816).

Almost surely, 2^131450556 is an apocalyptic number.

It is an amenable number.

131450556 is an abundant number, since it is smaller than the sum of its proper divisors (176441028).

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

131450556 is a wasteful number, since it uses less digits than its factorization.

131450556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41921 (or 41919 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 131450556 is about 11465.1888776417. The cubic root of 131450556 is about 508.4568966905.

The spelling of 131450556 in words is "one hundred thirty-one million, four hundred fifty thousand, five hundred fifty-six".