130515944 has 32 divisors (see below), whose sum is σ = 265319040. Its totient is φ = 59832000.

The previous prime is 130515943. The next prime is 130515947. The reversal of 130515944 is 449515031.

It is a super-2 number, since 2×130515944² = 34068823276422272, 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 130515944.

It is not an unprimeable number, because it can be changed into a prime (130515943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11549 + ... + 19859.

It is an arithmetic number, because the mean of its divisors is an integer number (8291220).

Almost surely, 2^130515944 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 130515944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132659520).

130515944 is an abundant number, since it is smaller than the sum of its proper divisors (134803096).

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

130515944 is a wasteful number, since it uses less digits than its factorization.

130515944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8481 (or 8477 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 130515944 is about 11424.3574874038. The cubic root of 130515944 is about 507.2489884416.

The spelling of 130515944 in words is "one hundred thirty million, five hundred fifteen thousand, nine hundred forty-four".