131302697 has 4 divisors (see below), whose sum is σ = 131530836. Its totient is φ = 131074560.

The previous prime is 131302687. The next prime is 131302733. The reversal of 131302697 is 796203131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 796203131 = 18211 ⋅43721.

It can be written as a sum of positive squares in 2 ways, for example, as 128958736 + 2343961 = 11356^2 + 1531^2 .

It is a cyclic number.

It is not a de Polignac number, because 131302697 - 2⁴ = 131302681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131302637) 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, 113204 + ... + 114357.

It is an arithmetic number, because the mean of its divisors is an integer number (32882709).

Almost surely, 2^131302697 is an apocalyptic number.

It is an amenable number.

131302697 is a deficient number, since it is larger than the sum of its proper divisors (228139).

131302697 is an equidigital number, since it uses as much as digits as its factorization.

131302697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228138.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 131302697 is about 11458.7388922167. The cubic root of 131302697 is about 508.2661833244.

The spelling of 131302697 in words is "one hundred thirty-one million, three hundred two thousand, six hundred ninety-seven".