199116803 has 2 divisors, whose sum is σ = 199116804. Its totient is φ = 199116802.

The previous prime is 199116793. The next prime is 199116811. The reversal of 199116803 is 308611991.

It is a strong prime.

It is an emirp because it is prime and its reverse (308611991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199116803 - 2⁶ = 199116739 is a prime.

It is not a weakly prime, because it can be changed into another prime (199116403) 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, 99558401 + 99558402.

It is an arithmetic number, because the mean of its divisors is an integer number (99558402).

Almost surely, 2^199116803 is an apocalyptic number.

199116803 is a deficient number, since it is larger than the sum of its proper divisors (1).

199116803 is an equidigital number, since it uses as much as digits as its factorization.

199116803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 199116803 is about 14110.8753449246. The cubic root of 199116803 is about 583.9414494922.

The spelling of 199116803 in words is "one hundred ninety-nine million, one hundred sixteen thousand, eight hundred three".