131680573 has 4 divisors (see below), whose sum is σ = 133160220. Its totient is φ = 130200928.

The previous prime is 131680559. The next prime is 131680603. The reversal of 131680573 is 375086131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10614564 + 121066009 = 3258^2 + 11003^2 .

It is a cyclic number.

It is not a de Polignac number, because 131680573 - 2⁵ = 131680541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131680553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739690 + ... + 739867.

It is an arithmetic number, because the mean of its divisors is an integer number (33290055).

Almost surely, 2^131680573 is an apocalyptic number.

It is an amenable number.

131680573 is a deficient number, since it is larger than the sum of its proper divisors (1479647).

131680573 is an equidigital number, since it uses as much as digits as its factorization.

131680573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479646.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 131680573 is about 11475.2155971032. The cubic root of 131680573 is about 508.7532960444.

The spelling of 131680573 in words is "one hundred thirty-one million, six hundred eighty thousand, five hundred seventy-three".