131339944 has 16 divisors (see below), whose sum is σ = 246741120. Its totient is φ = 65542320.

The previous prime is 131339941. The next prime is 131339953. The reversal of 131339944 is 449933131.

It is not an unprimeable number, because it can be changed into a prime (131339941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11512 + ... + 19879.

It is an arithmetic number, because the mean of its divisors is an integer number (15421320).

Almost surely, 2^131339944 is an apocalyptic number.

It is an amenable number.

131339944 is a deficient number, since it is larger than the sum of its proper divisors (115401176).

131339944 is a wasteful number, since it uses less digits than its factorization.

131339944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31920 (or 31916 counting only the distinct ones).

The product of its digits is 34992, while the sum is 37.

The square root of 131339944 is about 11460.3640430834. The cubic root of 131339944 is about 508.3142392063.

The spelling of 131339944 in words is "one hundred thirty-one million, three hundred thirty-nine thousand, nine hundred forty-four".