130644912 has 80 divisors (see below), whose sum is σ = 366801920. Its totient is φ = 39916800.

The previous prime is 130644911. The next prime is 130644953. The reversal of 130644912 is 219446031.

It is a self number, because there is not a number n which added to its sum of digits gives 130644912.

It is not an unprimeable number, because it can be changed into a prime (130644911) 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, 25962 + ... + 30582.

It is an arithmetic number, because the mean of its divisors is an integer number (4585024).

Almost surely, 2^130644912 is an apocalyptic number.

130644912 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 130644912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183400960).

130644912 is an abundant number, since it is smaller than the sum of its proper divisors (236157008).

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

130644912 is a wasteful number, since it uses less digits than its factorization.

130644912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4682 (or 4676 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 130644912 is about 11430.0005249344. Note that the first 3 decimals coincide. The cubic root of 130644912 is about 507.4160110793.

The spelling of 130644912 in words is "one hundred thirty million, six hundred forty-four thousand, nine hundred twelve".