131567577 has 16 divisors (see below), whose sum is σ = 181842240. Its totient is φ = 84514752.

The previous prime is 131567563. The next prime is 131567593. The reversal of 131567577 is 775765131.

It is not a de Polignac number, because 131567577 - 2⁴ = 131567561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131567507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52098 + ... + 54564.

It is an arithmetic number, because the mean of its divisors is an integer number (11365140).

Almost surely, 2^131567577 is an apocalyptic number.

It is an amenable number.

131567577 is a deficient number, since it is larger than the sum of its proper divisors (50274663).

131567577 is a wasteful number, since it uses less digits than its factorization.

131567577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3112.

The product of its digits is 154350, while the sum is 42.

The square root of 131567577 is about 11470.2910599514. The cubic root of 131567577 is about 508.6077328396.

The spelling of 131567577 in words is "one hundred thirty-one million, five hundred sixty-seven thousand, five hundred seventy-seven".