130715520 has 128 divisors (see below), whose sum is σ = 448791840. Its totient is φ = 32169984.

The previous prime is 130715489. The next prime is 130715521. The reversal of 130715520 is 25517031.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130715521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22342 + ... + 27578.

Almost surely, 2^130715520 is an apocalyptic number.

130715520 is a gapful number since it is divisible by the number (10) 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 130715520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224395920).

130715520 is an abundant number, since it is smaller than the sum of its proper divisors (318076320).

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

130715520 is a wasteful number, since it uses less digits than its factorization.

130715520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5272 (or 5260 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 130715520 is about 11433.0888214865. The cubic root of 130715520 is about 507.5074068499.

The spelling of 130715520 in words is "one hundred thirty million, seven hundred fifteen thousand, five hundred twenty".