12930009 has 16 divisors (see below), whose sum is σ = 17683200. Its totient is φ = 8401536.

The previous prime is 12929999. The next prime is 12930011. The reversal of 12930009 is 90003921.

It is a happy number.

It is not a de Polignac number, because 12930009 - 2⁸ = 12929753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12930019) 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 15 ways as a sum of consecutive naturals, for example, 20787 + ... + 21399.

It is an arithmetic number, because the mean of its divisors is an integer number (1105200).

Almost surely, 2^12930009 is an apocalyptic number.

It is an amenable number.

12930009 is a deficient number, since it is larger than the sum of its proper divisors (4753191).

12930009 is an equidigital number, since it uses as much as digits as its factorization.

12930009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 12930009 is about 3595.8321707221. The cubic root of 12930009 is about 234.7107290263.

The spelling of 12930009 in words is "twelve million, nine hundred thirty thousand, nine".