12803009 has 2 divisors, whose sum is σ = 12803010. Its totient is φ = 12803008.

The previous prime is 12802987. The next prime is 12803033. The reversal of 12803009 is 90030821.

12803009 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12054784 + 748225 = 3472^2 + 865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12803009 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12803039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6401504 + 6401505.

It is an arithmetic number, because the mean of its divisors is an integer number (6401505).

Almost surely, 2^12803009 is an apocalyptic number.

It is an amenable number.

12803009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12803009 is an equidigital number, since it uses as much as digits as its factorization.

12803009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 12803009 is about 3578.1292598228. The cubic root of 12803009 is about 233.9397475571.

The spelling of 12803009 in words is "twelve million, eight hundred three thousand, nine".