131555044 has 12 divisors (see below), whose sum is σ = 243763884. Its totient is φ = 61908224.

The previous prime is 131555033. The next prime is 131555051. The reversal of 131555044 is 440555131.

It can be written as a sum of positive squares in 2 ways, for example, as 59474944 + 72080100 = 7712^2 + 8490^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 967249 + ... + 967384.

It is an arithmetic number, because the mean of its divisors is an integer number (20313657).

Almost surely, 2^131555044 is an apocalyptic number.

It is an amenable number.

131555044 is a deficient number, since it is larger than the sum of its proper divisors (112208840).

131555044 is a wasteful number, since it uses less digits than its factorization.

131555044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934654 (or 1934652 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 131555044 is about 11469.7447225298. The cubic root of 131555044 is about 508.5915825001.

The spelling of 131555044 in words is "one hundred thirty-one million, five hundred fifty-five thousand, forty-four".