131817112 has 16 divisors (see below), whose sum is σ = 282465360. Its totient is φ = 56493024.

The previous prime is 131817097. The next prime is 131817131. The reversal of 131817112 is 211718131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1176883 + ... + 1176994.

It is an arithmetic number, because the mean of its divisors is an integer number (17654085).

Almost surely, 2^131817112 is an apocalyptic number.

It is an amenable number.

131817112 is an abundant number, since it is smaller than the sum of its proper divisors (150648248).

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

131817112 is a wasteful number, since it uses less digits than its factorization.

131817112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353890 (or 2353886 counting only the distinct ones).

The product of its digits is 336, while the sum is 25.

The square root of 131817112 is about 11481.1633556883. The cubic root of 131817112 is about 508.9290766457.

The spelling of 131817112 in words is "one hundred thirty-one million, eight hundred seventeen thousand, one hundred twelve".