131557144 has 16 divisors (see below), whose sum is σ = 246912120. Its totient is φ = 65713920.

The previous prime is 131557103. The next prime is 131557187. The reversal of 131557144 is 441755131.

It is a congruent number.

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, 1192 + ... + 16264.

Almost surely, 2^131557144 is an apocalyptic number.

It is an amenable number.

131557144 is a deficient number, since it is larger than the sum of its proper divisors (115354976).

131557144 is a wasteful number, since it uses less digits than its factorization.

131557144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16170 (or 16166 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 131557144 is about 11469.8362673580. The cubic root of 131557144 is about 508.5942886845.

The spelling of 131557144 in words is "one hundred thirty-one million, five hundred fifty-seven thousand, one hundred forty-four".