131608242 has 24 divisors (see below), whose sum is σ = 288094716. Its totient is φ = 43416576.

The previous prime is 131608241. The next prime is 131608259. The reversal of 131608242 is 242806131.

131608242 is a `hidden beast` number, since 1 + 31 + 608 + 24 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 126090441 + 5517801 = 11229^2 + 2349^2 .

It is not an unprimeable number, because it can be changed into a prime (131608241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35943 + ... + 39434.

Almost surely, 2^131608242 is an apocalyptic number.

131608242 is an abundant number, since it is smaller than the sum of its proper divisors (156486474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131608242 is a wasteful number, since it uses less digits than its factorization.

131608242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75482 (or 75479 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 131608242 is about 11472.0635458491. The cubic root of 131608242 is about 508.6601277215.

The spelling of 131608242 in words is "one hundred thirty-one million, six hundred eight thousand, two hundred forty-two".