12309299 has 2 divisors, whose sum is σ = 12309300. Its totient is φ = 12309298.

The previous prime is 12309289. The next prime is 12309317. The reversal of 12309299 is 99290321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12309299 - 2²⁰ = 11260723 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12309239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6154649 + 6154650.

It is an arithmetic number, because the mean of its divisors is an integer number (6154650).

Almost surely, 2^12309299 is an apocalyptic number.

12309299 is a deficient number, since it is larger than the sum of its proper divisors (1).

12309299 is an equidigital number, since it uses as much as digits as its factorization.

12309299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 12309299 is about 3508.4610586410. The cubic root of 12309299 is about 230.8931809991.

The spelling of 12309299 in words is "twelve million, three hundred nine thousand, two hundred ninety-nine".