131608177 has 8 divisors (see below), whose sum is σ = 136904040. Its totient is φ = 126362880.

The previous prime is 131608159. The next prime is 131608199. The reversal of 131608177 is 771806131.

It can be written as a sum of positive squares in 4 ways, for example, as 24336 + 131583841 = 156^2 + 11471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131608177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131608777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7288 + ... + 17785.

It is an arithmetic number, because the mean of its divisors is an integer number (17113005).

Almost surely, 2^131608177 is an apocalyptic number.

It is an amenable number.

131608177 is a deficient number, since it is larger than the sum of its proper divisors (5295863).

131608177 is a wasteful number, since it uses less digits than its factorization.

131608177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25283.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 131608177 is about 11472.0607128798. The cubic root of 131608177 is about 508.6600439808.

The spelling of 131608177 in words is "one hundred thirty-one million, six hundred eight thousand, one hundred seventy-seven".