131770317 has 16 divisors (see below), whose sum is σ = 202573440. Its totient is φ = 74629632.

The previous prime is 131770291. The next prime is 131770319. The reversal of 131770317 is 713077131.

It is not a de Polignac number, because 131770317 - 2⁶ = 131770253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131770319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25392 + ... + 30137.

It is an arithmetic number, because the mean of its divisors is an integer number (12660840).

Almost surely, 2^131770317 is an apocalyptic number.

It is an amenable number.

131770317 is a deficient number, since it is larger than the sum of its proper divisors (70803123).

131770317 is a wasteful number, since it uses less digits than its factorization.

131770317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55652.

The product of its (nonzero) digits is 3087, while the sum is 30.

The square root of 131770317 is about 11479.1252715527. The cubic root of 131770317 is about 508.8688463401.

The spelling of 131770317 in words is "one hundred thirty-one million, seven hundred seventy thousand, three hundred seventeen".