131323577 has 12 divisors (see below), whose sum is σ = 166652496. Its totient is φ = 102329640.

The previous prime is 131323553. The next prime is 131323579. The reversal of 131323577 is 775323131.

It is not a de Polignac number, because 131323577 - 2¹⁰ = 131322553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131323579) 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, 121283 + ... + 122360.

It is an arithmetic number, because the mean of its divisors is an integer number (13887708).

Almost surely, 2^131323577 is an apocalyptic number.

It is an amenable number.

131323577 is a deficient number, since it is larger than the sum of its proper divisors (35328919).

131323577 is a wasteful number, since it uses less digits than its factorization.

131323577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243668 (or 243661 counting only the distinct ones).

The product of its digits is 13230, while the sum is 32.

The square root of 131323577 is about 11459.6499510238. The cubic root of 131323577 is about 508.2931237089.

The spelling of 131323577 in words is "one hundred thirty-one million, three hundred twenty-three thousand, five hundred seventy-seven".