12399119 has 2 divisors, whose sum is σ = 12399120. Its totient is φ = 12399118.

The previous prime is 12399113. The next prime is 12399143. The reversal of 12399119 is 91199321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12399119 is a prime.

It is a super-2 number, since 2×12399119² = 307476303952322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12399113) 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 as a sum of consecutive naturals, namely, 6199559 + 6199560.

It is an arithmetic number, because the mean of its divisors is an integer number (6199560).

Almost surely, 2^12399119 is an apocalyptic number.

12399119 is a deficient number, since it is larger than the sum of its proper divisors (1).

12399119 is an equidigital number, since it uses as much as digits as its factorization.

12399119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4374, while the sum is 35.

The square root of 12399119 is about 3521.2382765158. The cubic root of 12399119 is about 231.4534237288.

The spelling of 12399119 in words is "twelve million, three hundred ninety-nine thousand, one hundred nineteen".