199999201 has 2 divisors, whose sum is σ = 199999202. Its totient is φ = 199999200.

The previous prime is 199999183. The next prime is 199999223. The reversal of 199999201 is 102999991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132365025 + 67634176 = 11505^2 + 8224^2 .

It is a cyclic number.

It is not a de Polignac number, because 199999201 - 2¹¹ = 199997153 is a prime.

It is a zygodrome in base 3.

It is not a weakly prime, because it can be changed into another prime (199999231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99999600 + 99999601.

It is an arithmetic number, because the mean of its divisors is an integer number (99999601).

Almost surely, 2^199999201 is an apocalyptic number.

It is an amenable number.

199999201 is a deficient number, since it is larger than the sum of its proper divisors (1).

199999201 is an equidigital number, since it uses as much as digits as its factorization.

199999201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 118098, while the sum is 49.

The square root of 199999201 is about 14142.1073747868. The cubic root of 199999201 is about 584.8027688781.

The spelling of 199999201 in words is "one hundred ninety-nine million, nine hundred ninety-nine thousand, two hundred one".