130520453 has 4 divisors (see below), whose sum is σ = 149166240. Its totient is φ = 111874668.

The previous prime is 130520431. The next prime is 130520459. The reversal of 130520453 is 354025031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 354025031 = 499 ⋅709469.

It is a cyclic number.

It is not a de Polignac number, because 130520453 - 2⁶ = 130520389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130520459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9322883 + ... + 9322896.

It is an arithmetic number, because the mean of its divisors is an integer number (37291560).

Almost surely, 2^130520453 is an apocalyptic number.

It is an amenable number.

130520453 is a deficient number, since it is larger than the sum of its proper divisors (18645787).

130520453 is an equidigital number, since it uses as much as digits as its factorization.

130520453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18645786.

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

The square root of 130520453 is about 11424.5548272132. The cubic root of 130520453 is about 507.2548297697.

Adding to 130520453 its reverse (354025031), we get a palindrome (484545484).

The spelling of 130520453 in words is "one hundred thirty million, five hundred twenty thousand, four hundred fifty-three".