131515060 has 24 divisors (see below), whose sum is σ = 292428360. Its totient is φ = 49511424.

The previous prime is 131515049. The next prime is 131515061. The reversal of 131515060 is 60515131.

It can be written as a sum of positive squares in 4 ways, for example, as 3055504 + 128459556 = 1748^2 + 11334^2 .

It is a super-2 number, since 2×131515060² = 34592422013607200, 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, 193065 + ... + 193744.

It is an arithmetic number, because the mean of its divisors is an integer number (12184515).

Almost surely, 2^131515060 is an apocalyptic number.

131515060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131515060 is an abundant number, since it is smaller than the sum of its proper divisors (160913300).

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

131515060 is a wasteful number, since it uses less digits than its factorization.

131515060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386835 (or 386833 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 131515060 is about 11468.0015695848. The cubic root of 131515060 is about 508.5400512531.

The spelling of 131515060 in words is "one hundred thirty-one million, five hundred fifteen thousand, sixty".