130521045 has 8 divisors (see below), whose sum is σ = 208833696. Its totient is φ = 69611216.

The previous prime is 130521011. The next prime is 130521047. The reversal of 130521045 is 540125031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130521045 - 2¹⁸ = 130258901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130521047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4350687 + ... + 4350716.

It is an arithmetic number, because the mean of its divisors is an integer number (26104212).

Almost surely, 2^130521045 is an apocalyptic number.

130521045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130521045 is a deficient number, since it is larger than the sum of its proper divisors (78312651).

130521045 is an equidigital number, since it uses as much as digits as its factorization.

130521045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8701411.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 130521045 is about 11424.5807362896. The cubic root of 130521045 is about 507.2555966850.

Adding to 130521045 its reverse (540125031), we get a palindrome (670646076).

The spelling of 130521045 in words is "one hundred thirty million, five hundred twenty-one thousand, forty-five".