131135888 has 30 divisors (see below), whose sum is σ = 275129154. Its totient is φ = 60523008.

The previous prime is 131135887. The next prime is 131135897. The reversal of 131135888 is 888531131.

It can be written as a sum of positive squares in 3 ways, for example, as 4528384 + 126607504 = 2128^2 + 11252^2 .

It is a super-2 number, since 2×131135888² = 34393242243097088, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (131135887) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21545 + ... + 26952.

Almost surely, 2^131135888 is an apocalyptic number.

It is an amenable number.

131135888 is an abundant number, since it is smaller than the sum of its proper divisors (143993266).

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

131135888 is a wasteful number, since it uses less digits than its factorization.

131135888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48531 (or 48512 counting only the distinct ones).

The product of its digits is 23040, while the sum is 38.

The square root of 131135888 is about 11451.4578984512. The cubic root of 131135888 is about 508.0508556771.

The spelling of 131135888 in words is "one hundred thirty-one million, one hundred thirty-five thousand, eight hundred eighty-eight".