130131009 has 8 divisors (see below), whose sum is σ = 192786720. Its totient is φ = 86753988.

The previous prime is 130130947. The next prime is 130131011. The reversal of 130131009 is 900131031.

It is not a de Polignac number, because 130131009 - 2¹¹ = 130128961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130130982 and 130131000.

It is not an unprimeable number, because it can be changed into a prime (130131809) 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 7 ways as a sum of consecutive naturals, for example, 2409807 + ... + 2409860.

It is an arithmetic number, because the mean of its divisors is an integer number (24098340).

Almost surely, 2^130131009 is an apocalyptic number.

It is an amenable number.

130131009 is a deficient number, since it is larger than the sum of its proper divisors (62655711).

130131009 is an equidigital number, since it uses as much as digits as its factorization.

130131009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4819676 (or 4819670 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

The square root of 130131009 is about 11407.4979289939. The cubic root of 130131009 is about 506.7498152916.

The spelling of 130131009 in words is "one hundred thirty million, one hundred thirty-one thousand, nine".