130103209 has 4 divisors (see below), whose sum is σ = 133276500. Its totient is φ = 126929920.

The previous prime is 130103173. The next prime is 130103219. The reversal of 130103209 is 902301031.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4214809 + 125888400 = 2053^2 + 11220^2 .

It is a cyclic number.

It is not a de Polignac number, because 130103209 - 2¹¹ = 130101161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130103219) 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, 1586584 + ... + 1586665.

It is an arithmetic number, because the mean of its divisors is an integer number (33319125).

Almost surely, 2^130103209 is an apocalyptic number.

It is an amenable number.

130103209 is a deficient number, since it is larger than the sum of its proper divisors (3173291).

130103209 is an equidigital number, since it uses as much as digits as its factorization.

130103209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173290.

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

The square root of 130103209 is about 11406.2793670855. The cubic root of 130103209 is about 506.7137269211.

The spelling of 130103209 in words is "one hundred thirty million, one hundred three thousand, two hundred nine".