130012520 has 64 divisors (see below), whose sum is σ = 320984640. Its totient is φ = 47001600.

The previous prime is 130012513. The next prime is 130012541. The reversal of 130012520 is 25210031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 130012495 and 130012504.

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, 84155 + ... + 85685.

It is an arithmetic number, because the mean of its divisors is an integer number (5015385).

Almost surely, 2^130012520 is an apocalyptic number.

130012520 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 130012520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160492320).

130012520 is an abundant number, since it is smaller than the sum of its proper divisors (190972120).

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

130012520 is a wasteful number, since it uses less digits than its factorization.

130012520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746 (or 1742 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 130012520 is about 11402.3032760929. The cubic root of 130012520 is about 506.5959638954.

Adding to 130012520 its reverse (25210031), we get a palindrome (155222551).

The spelling of 130012520 in words is "one hundred thirty million, twelve thousand, five hundred twenty".