131515068 has 24 divisors (see below), whose sum is σ = 309112272. Its totient is φ = 43517824.

The previous prime is 131515067. The next prime is 131515073. The reversal of 131515068 is 860515131.

It is a super-2 number, since 2×131515068² = 34592426222089248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131515061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38355 + ... + 41642.

It is an arithmetic number, because the mean of its divisors is an integer number (12879678).

Almost surely, 2^131515068 is an apocalyptic number.

It is an amenable number.

131515068 is an abundant number, since it is smaller than the sum of its proper divisors (177597204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131515068 is a wasteful number, since it uses less digits than its factorization.

131515068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80141 (or 80139 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 131515068 is about 11468.0019183814. The cubic root of 131515068 is about 508.5400615645.

The spelling of 131515068 in words is "one hundred thirty-one million, five hundred fifteen thousand, sixty-eight".