130779009 has 16 divisors (see below), whose sum is σ = 200428800. Its totient is φ = 84179088.

The previous prime is 130779007. The next prime is 130779017. The reversal of 130779009 is 900977031.

It is not a de Polignac number, because 130779009 - 2¹ = 130779007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130779001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82729 + ... + 84294.

It is an arithmetic number, because the mean of its divisors is an integer number (12526800).

Almost surely, 2^130779009 is an apocalyptic number.

It is an amenable number.

130779009 is a deficient number, since it is larger than the sum of its proper divisors (69649791).

130779009 is a wasteful number, since it uses less digits than its factorization.

130779009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167061 (or 167055 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 130779009 is about 11435.8650306831. The cubic root of 130779009 is about 507.5895596107.

The spelling of 130779009 in words is "one hundred thirty million, seven hundred seventy-nine thousand, nine".