131872144 has 40 divisors (see below), whose sum is σ = 263584568. Its totient is φ = 63866880.

The previous prime is 131872129. The next prime is 131872151. The reversal of 131872144 is 441278131.

It can be written as a sum of positive squares in 4 ways, for example, as 49280400 + 82591744 = 7020^2 + 9088^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199174 + ... + 199834.

Almost surely, 2^131872144 is an apocalyptic number.

It is an amenable number.

131872144 is a deficient number, since it is larger than the sum of its proper divisors (131712424).

131872144 is a wasteful number, since it uses less digits than its factorization.

131872144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043 (or 1037 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 131872144 is about 11483.5597268443. The cubic root of 131872144 is about 508.9998906391. Note that the first 3 decimals are identical.

The spelling of 131872144 in words is "one hundred thirty-one million, eight hundred seventy-two thousand, one hundred forty-four".