131198886 has 64 divisors (see below), whose sum is σ = 358848000. Its totient is φ = 34600608.

The previous prime is 131198867. The next prime is 131198927. The reversal of 131198886 is 688891131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8436 + ... + 18263.

It is an arithmetic number, because the mean of its divisors is an integer number (5607000).

Almost surely, 2^131198886 is an apocalyptic number.

131198886 is an abundant number, since it is smaller than the sum of its proper divisors (227649114).

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

131198886 is a wasteful number, since it uses less digits than its factorization.

131198886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26730 (or 26724 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The square root of 131198886 is about 11454.2082223085. The cubic root of 131198886 is about 508.1321989421.

The spelling of 131198886 in words is "one hundred thirty-one million, one hundred ninety-eight thousand, eight hundred eighty-six".