11818199 has 2 divisors, whose sum is σ = 11818200. Its totient is φ = 11818198.

The previous prime is 11818181. The next prime is 11818211. The reversal of 11818199 is 99181811.

11818199 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (99181811) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11818199 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11818139) 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, 5909099 + 5909100.

It is an arithmetic number, because the mean of its divisors is an integer number (5909100).

Almost surely, 2^11818199 is an apocalyptic number.

11818199 is a deficient number, since it is larger than the sum of its proper divisors (1).

11818199 is an equidigital number, since it uses as much as digits as its factorization.

11818199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 38.

The square root of 11818199 is about 3437.7607537465. The cubic root of 11818199 is about 227.7807924425.

The spelling of 11818199 in words is "eleven million, eight hundred eighteen thousand, one hundred ninety-nine".