131988280 has 32 divisors (see below), whose sum is σ = 307216800. Its totient is φ = 50974336.

The previous prime is 131988271. The next prime is 131988301. The reversal of 131988280 is 82889131.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55732 + ... + 58051.

It is an arithmetic number, because the mean of its divisors is an integer number (9600525).

Almost surely, 2^131988280 is an apocalyptic number.

131988280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131988280 is an abundant number, since it is smaller than the sum of its proper divisors (175228520).

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

131988280 is a wasteful number, since it uses less digits than its factorization.

131988280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113823 (or 113819 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 131988280 is about 11488.6152342221. The cubic root of 131988280 is about 509.1492673128.

The spelling of 131988280 in words is "one hundred thirty-one million, nine hundred eighty-eight thousand, two hundred eighty".