131310568 has 16 divisors (see below), whose sum is σ = 246351780. Its totient is φ = 65616768.

The previous prime is 131310559. The next prime is 131310581. The reversal of 131310568 is 865013131.

It can be written as a sum of positive squares in 2 ways, for example, as 98843364 + 32467204 = 9942^2 + 5698^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13996 + ... + 21412.

Almost surely, 2^131310568 is an apocalyptic number.

It is an amenable number.

131310568 is a deficient number, since it is larger than the sum of its proper divisors (115041212).

131310568 is a wasteful number, since it uses less digits than its factorization.

131310568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9636 (or 9632 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 131310568 is about 11459.0823367319. The cubic root of 131310568 is about 508.2763392042.

Adding to 131310568 its reverse (865013131), we get a palindrome (996323699).

It can be divided in two parts, 1313 and 10568, that added together give a square (11881 = 109²).

The spelling of 131310568 in words is "one hundred thirty-one million, three hundred ten thousand, five hundred sixty-eight".