130045523 has 4 divisors (see below), whose sum is σ = 130719528. Its totient is φ = 129371520.

The previous prime is 130045477. The next prime is 130045549. The reversal of 130045523 is 325540031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130045523 - 2¹⁴ = 130029139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130045723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336713 + ... + 337098.

It is an arithmetic number, because the mean of its divisors is an integer number (32679882).

Almost surely, 2^130045523 is an apocalyptic number.

130045523 is a deficient number, since it is larger than the sum of its proper divisors (674005).

130045523 is an equidigital number, since it uses as much as digits as its factorization.

130045523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674004.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 130045523 is about 11403.7503918667. The cubic root of 130045523 is about 506.6388258498.

Adding to 130045523 its reverse (325540031), we get a palindrome (455585554).

The spelling of 130045523 in words is "one hundred thirty million, forty-five thousand, five hundred twenty-three".