130581888 has 32 divisors (see below), whose sum is σ = 346859160. Its totient is φ = 43527168.

The previous prime is 130581881. The next prime is 130581901. The reversal of 130581888 is 888185031.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130581881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169645 + ... + 170412.

Almost surely, 2^130581888 is an apocalyptic number.

It is an amenable number.

130581888 is an abundant number, since it is smaller than the sum of its proper divisors (216277272).

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

130581888 is an equidigital number, since it uses as much as digits as its factorization.

130581888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340074 (or 340062 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 42.

The square root of 130581888 is about 11427.2432371067. The cubic root of 130581888 is about 507.3344043028.

The spelling of 130581888 in words is "one hundred thirty million, five hundred eighty-one thousand, eight hundred eighty-eight".