13812199 has 2 divisors, whose sum is σ = 13812200. Its totient is φ = 13812198.

The previous prime is 13812193. The next prime is 13812209. The reversal of 13812199 is 99121831.

It is a weak prime.

It is an emirp because it is prime and its reverse (99121831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13812199 - 2³ = 13812191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13812191) 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, 6906099 + 6906100.

It is an arithmetic number, because the mean of its divisors is an integer number (6906100).

Almost surely, 2^13812199 is an apocalyptic number.

13812199 is a deficient number, since it is larger than the sum of its proper divisors (1).

13812199 is an equidigital number, since it uses as much as digits as its factorization.

13812199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 34.

The square root of 13812199 is about 3716.4766917068. The cubic root of 13812199 is about 239.9316877337.

The spelling of 13812199 in words is "thirteen million, eight hundred twelve thousand, one hundred ninety-nine".