131576737 has 4 divisors (see below), whose sum is σ = 131600196. Its totient is φ = 131553280.

The previous prime is 131576701. The next prime is 131576743. The reversal of 131576737 is 737675131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 737675131 = 12149 ⋅60719.

It can be written as a sum of positive squares in 2 ways, for example, as 126360081 + 5216656 = 11241^2 + 2284^2 .

It is a cyclic number.

It is not a de Polignac number, because 131576737 - 2⁷ = 131576609 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131576737.

It is not an unprimeable number, because it can be changed into a prime (131576747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2193 + ... + 16369.

It is an arithmetic number, because the mean of its divisors is an integer number (32900049).

Almost surely, 2^131576737 is an apocalyptic number.

It is an amenable number.

131576737 is a deficient number, since it is larger than the sum of its proper divisors (23459).

131576737 is an equidigital number, since it uses as much as digits as its factorization.

131576737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23458.

The product of its digits is 92610, while the sum is 40.

The square root of 131576737 is about 11470.6903453977. The cubic root of 131576737 is about 508.6195359977.

The spelling of 131576737 in words is "one hundred thirty-one million, five hundred seventy-six thousand, seven hundred thirty-seven".