130045520 has 40 divisors (see below), whose sum is σ = 329844960. Its totient is φ = 47288960.

The previous prime is 130045477. The next prime is 130045549. The reversal of 130045520 is 25540031.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 130045492 and 130045501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73010 + ... + 74769.

It is an arithmetic number, because the mean of its divisors is an integer number (8246124).

Almost surely, 2^130045520 is an apocalyptic number.

130045520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130045520 is an abundant number, since it is smaller than the sum of its proper divisors (199799440).

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

130045520 is a wasteful number, since it uses less digits than its factorization.

130045520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147803 (or 147797 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 130045520 is about 11403.7502603310. The cubic root of 130045520 is about 506.6388219539.

Adding to 130045520 its reverse (25540031), we get a palindrome (155585551).

The spelling of 130045520 in words is "one hundred thirty million, forty-five thousand, five hundred twenty".