8130009 has 4 divisors (see below), whose sum is σ = 10840016. Its totient is φ = 5420004.

The previous prime is 8130007. The next prime is 8130071. The reversal of 8130009 is 9000318.

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.

It is not a de Polignac number, because 8130009 - 2¹ = 8130007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8130007) 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 3 ways as a sum of consecutive naturals, for example, 1354999 + ... + 1355004.

It is an arithmetic number, because the mean of its divisors is an integer number (2710004).

Almost surely, 2^8130009 is an apocalyptic number.

It is an amenable number.

8130009 is a deficient number, since it is larger than the sum of its proper divisors (2710007).

8130009 is a wasteful number, since it uses less digits than its factorization.

8130009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710006.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 8130009 is about 2851.3170640951. The cubic root of 8130009 is about 201.0775918845.

The spelling of 8130009 in words is "eight million, one hundred thirty thousand, nine".