131375868 has 36 divisors (see below), whose sum is σ = 331942968. Its totient is φ = 40422720.

The previous prime is 131375843. The next prime is 131375869. The reversal of 131375868 is 868573131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131375869) 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, 30363 + ... + 34418.

It is an arithmetic number, because the mean of its divisors is an integer number (9220638).

Almost surely, 2^131375868 is an apocalyptic number.

It is an amenable number.

131375868 is an abundant number, since it is smaller than the sum of its proper divisors (200567100).

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

131375868 is a wasteful number, since it uses less digits than its factorization.

131375868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64814 (or 64799 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 131375868 is about 11461.9312508844. The cubic root of 131375868 is about 508.3605795543.

The spelling of 131375868 in words is "one hundred thirty-one million, three hundred seventy-five thousand, eight hundred sixty-eight".