131052815 has 12 divisors (see below), whose sum is σ = 158623752. Its totient is φ = 103939200.

The previous prime is 131052811. The next prime is 131052821. The reversal of 131052815 is 518250131.

It is a happy number.

It is not a de Polignac number, because 131052815 - 2² = 131052811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131052811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 326615 + ... + 327015.

It is an arithmetic number, because the mean of its divisors is an integer number (13218646).

Almost surely, 2^131052815 is an apocalyptic number.

131052815 is a deficient number, since it is larger than the sum of its proper divisors (27570937).

131052815 is an frugal number, since it uses more digits than its factorization.

With its successor (131052816) it forms an eRAP, since the sums of their prime factors are consecutive (970 and 971).

131052815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 131052815 is about 11447.8301437434. The cubic root of 131052815 is about 507.9435516565.

The spelling of 131052815 in words is "one hundred thirty-one million, fifty-two thousand, eight hundred fifteen".