130809563 has 4 divisors (see below), whose sum is σ = 130900680. Its totient is φ = 130718448.

The previous prime is 130809551. The next prime is 130809587. The reversal of 130809563 is 365908031.

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 130809563 - 2⁸ = 130809307 is a prime.

It is a super-2 number, since 2×130809563² = 34222283544501938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130809593) 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, 43370 + ... + 46287.

It is an arithmetic number, because the mean of its divisors is an integer number (32725170).

Almost surely, 2^130809563 is an apocalyptic number.

130809563 is a deficient number, since it is larger than the sum of its proper divisors (91117).

130809563 is an equidigital number, since it uses as much as digits as its factorization.

130809563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91116.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 130809563 is about 11437.2008376176. The cubic root of 130809563 is about 507.6290860451.

The spelling of 130809563 in words is "one hundred thirty million, eight hundred nine thousand, five hundred sixty-three".