131255242 has 16 divisors (see below), whose sum is σ = 202866120. Its totient is φ = 63661312.

The previous prime is 131255237. The next prime is 131255251. The reversal of 131255242 is 242552131.

It can be written as a sum of positive squares in 4 ways, for example, as 114041041 + 17214201 = 10679^2 + 4149^2 .

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, 2478 + ... + 16390.

Almost surely, 2^131255242 is an apocalyptic number.

131255242 is a deficient number, since it is larger than the sum of its proper divisors (71610878).

131255242 is a wasteful number, since it uses less digits than its factorization.

131255242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14057.

The product of its digits is 2400, while the sum is 25.

The square root of 131255242 is about 11456.6680147415. The cubic root of 131255242 is about 508.2049439678.

The spelling of 131255242 in words is "one hundred thirty-one million, two hundred fifty-five thousand, two hundred forty-two".