131608170 has 24 divisors (see below), whose sum is σ = 342181476. Its totient is φ = 35095488.

The previous prime is 131608159. The next prime is 131608199. The reversal of 131608170 is 71806131.

It can be written as a sum of positive squares in 2 ways, for example, as 116186841 + 15421329 = 10779^2 + 3927^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 731067 + ... + 731246.

Almost surely, 2^131608170 is an apocalyptic number.

131608170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131608170 is an abundant number, since it is smaller than the sum of its proper divisors (210573306).

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

131608170 is a wasteful number, since it uses less digits than its factorization.

131608170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462326 (or 1462323 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 131608170 is about 11472.0604077907. The cubic root of 131608170 is about 508.6600349625.

The spelling of 131608170 in words is "one hundred thirty-one million, six hundred eight thousand, one hundred seventy".