130609 has 4 divisors (see below), whose sum is σ = 131440. Its totient is φ = 129780.

The previous prime is 130589. The next prime is 130619. The reversal of 130609 is 906031.

130609 is nontrivially palindromic in base 14.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 130609 - 2¹⁵ = 97841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130619) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 99 + ... + 520.

It is an arithmetic number, because the mean of its divisors is an integer number (32860).

2¹³⁰⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

130609 is a deficient number, since it is larger than the sum of its proper divisors (831).

130609 is an equidigital number, since it uses as much as digits as its factorization.

130609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 130609 is about 361.3986718293. The cubic root of 130609 is about 50.7369513558.

The spelling of 130609 in words is "one hundred thirty thousand, six hundred nine".