131297339 has 4 divisors (see below), whose sum is σ = 132772680. Its totient is φ = 129822000.

The previous prime is 131297329. The next prime is 131297359. The reversal of 131297339 is 933792131.

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

It is a cyclic number.

It is not a de Polignac number, because 131297339 - 2⁴ = 131297323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131297329) 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, 737537 + ... + 737714.

It is an arithmetic number, because the mean of its divisors is an integer number (33193170).

Almost surely, 2^131297339 is an apocalyptic number.

131297339 is a deficient number, since it is larger than the sum of its proper divisors (1475341).

131297339 is an equidigital number, since it uses as much as digits as its factorization.

131297339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475340.

The product of its digits is 30618, while the sum is 38.

The square root of 131297339 is about 11458.5050944702. The cubic root of 131297339 is about 508.2592697136.

The spelling of 131297339 in words is "one hundred thirty-one million, two hundred ninety-seven thousand, three hundred thirty-nine".