130971808 has 96 divisors (see below), whose sum is σ = 305363520. Its totient is φ = 54620160.

The previous prime is 130971793. The next prime is 130971817. The reversal of 130971808 is 808179031.

It is a super-2 number, since 2×130971808² = 34307228981577728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257058 + ... + 257566.

It is an arithmetic number, because the mean of its divisors is an integer number (3180870).

Almost surely, 2^130971808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130971808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152681760).

130971808 is an abundant number, since it is smaller than the sum of its proper divisors (174391712).

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

130971808 is a wasteful number, since it uses less digits than its factorization.

130971808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 582 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 130971808 is about 11444.2915027537. The cubic root of 130971808 is about 507.8388725769.

The spelling of 130971808 in words is "one hundred thirty million, nine hundred seventy-one thousand, eight hundred eight".