130004520 has 32 divisors (see below), whose sum is σ = 390013920. Its totient is φ = 34667840.

The previous prime is 130004519. The next prime is 130004521. The reversal of 130004520 is 25400031.

It is an interprime number because it is at equal distance from previous prime (130004519) and next prime (130004521).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 130004520.

It is not an unprimeable number, because it can be changed into a prime (130004521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541566 + ... + 541805.

It is an arithmetic number, because the mean of its divisors is an integer number (12187935).

Almost surely, 2^130004520 is an apocalyptic number.

130004520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130004520 is an abundant number, since it is smaller than the sum of its proper divisors (260009400).

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

130004520 is a wasteful number, since it uses less digits than its factorization.

130004520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083385 (or 1083381 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 130004520 is about 11401.9524643808. The cubic root of 130004520 is about 506.5855729709.

Adding to 130004520 its reverse (25400031), we get a palindrome (155404551).

The spelling of 130004520 in words is "one hundred thirty million, four thousand, five hundred twenty".