130520530 has 32 divisors (see below), whose sum is σ = 268894080. Its totient is φ = 44684160.

The previous prime is 130520521. The next prime is 130520531. The reversal of 130520530 is 35025031.

It is a junction number, because it is equal to n+sod(n) for n = 130520498 and 130520507.

It is not an unprimeable number, because it can be changed into a prime (130520531) 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, 87390 + ... + 88870.

It is an arithmetic number, because the mean of its divisors is an integer number (8402940).

Almost surely, 2^130520530 is an apocalyptic number.

130520530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130520530 is an abundant number, since it is smaller than the sum of its proper divisors (138373550).

130520530 is a wasteful number, since it uses less digits than its factorization.

130520530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2754.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 130520530 is about 11424.5581971471. The cubic root of 130520530 is about 507.2549295207.

Adding to 130520530 its reverse (35025031), we get a palindrome (165545561).

The spelling of 130520530 in words is "one hundred thirty million, five hundred twenty thousand, five hundred thirty".