131155115 has 24 divisors (see below), whose sum is σ = 197169840. Its totient is φ = 83014848.

The previous prime is 131155061. The next prime is 131155133. The reversal of 131155115 is 511551131.

It is not a de Polignac number, because 131155115 - 2¹⁰ = 131154091 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17405 + ... + 23774.

It is an arithmetic number, because the mean of its divisors is an integer number (8215410).

Almost surely, 2^131155115 is an apocalyptic number.

131155115 is a deficient number, since it is larger than the sum of its proper divisors (66014725).

131155115 is a wasteful number, since it uses less digits than its factorization.

131155115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41211 (or 41204 counting only the distinct ones).

The product of its digits is 375, while the sum is 23.

The square root of 131155115 is about 11452.2973677773. The cubic root of 131155115 is about 508.0756844166.

The spelling of 131155115 in words is "one hundred thirty-one million, one hundred fifty-five thousand, one hundred fifteen".