130189009 has 6 divisors (see below), whose sum is σ = 138297974. Its totient is φ = 122530560.

The previous prime is 130189001. The next prime is 130189021. The reversal of 130189009 is 900981031.

It can be written as a sum of positive squares in 3 ways, for example, as 12531600 + 117657409 = 3540^2 + 10847^2 .

It is not a de Polignac number, because 130189009 - 2³ = 130189001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130189001) 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 5 ways as a sum of consecutive naturals, for example, 224952 + ... + 225529.

Almost surely, 2^130189009 is an apocalyptic number.

It is an amenable number.

130189009 is a deficient number, since it is larger than the sum of its proper divisors (8108965).

130189009 is an equidigital number, since it uses as much as digits as its factorization.

130189009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450515 (or 450498 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 130189009 is about 11410.0398334099. The cubic root of 130189009 is about 506.8250910309.

The spelling of 130189009 in words is "one hundred thirty million, one hundred eighty-nine thousand, nine".