130815912 has 64 divisors (see below), whose sum is σ = 352699200. Its totient is φ = 40296960.

The previous prime is 130815911. The next prime is 130815917. The reversal of 130815912 is 219518031.

It is a super-2 number, since 2×130815912² = 34225605664783488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 130815912.

It is not an unprimeable number, because it can be changed into a prime (130815911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15198 + ... + 22194.

It is an arithmetic number, because the mean of its divisors is an integer number (5510925).

Almost surely, 2^130815912 is an apocalyptic number.

130815912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130815912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176349600).

130815912 is an abundant number, since it is smaller than the sum of its proper divisors (221883288).

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

130815912 is a wasteful number, since it uses less digits than its factorization.

130815912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7066 (or 7062 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 130815912 is about 11437.4783934222. The cubic root of 130815912 is about 507.6372987090.

The spelling of 130815912 in words is "one hundred thirty million, eight hundred fifteen thousand, nine hundred twelve".