131944880 has 20 divisors (see below), whose sum is σ = 306772032. Its totient is φ = 52777920.

The previous prime is 131944843. The next prime is 131944889. The reversal of 131944880 is 88449131.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (131944889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 824576 + ... + 824735.

Almost surely, 2^131944880 is an apocalyptic number.

131944880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131944880 is an abundant number, since it is smaller than the sum of its proper divisors (174827152).

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

131944880 is a wasteful number, since it uses less digits than its factorization.

131944880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649324 (or 1649318 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 131944880 is about 11486.7262525055. The cubic root of 131944880 is about 509.0934555377.

The spelling of 131944880 in words is "one hundred thirty-one million, nine hundred forty-four thousand, eight hundred eighty".