199268317 has 2 divisors, whose sum is σ = 199268318. Its totient is φ = 199268316.

The previous prime is 199268269. The next prime is 199268327. The reversal of 199268317 is 713862991.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178783641 + 20484676 = 13371^2 + 4526^2 .

It is an emirp because it is prime and its reverse (713862991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199268317 - 2¹¹ = 199266269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199268327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99634158 + 99634159.

It is an arithmetic number, because the mean of its divisors is an integer number (99634159).

Almost surely, 2^199268317 is an apocalyptic number.

It is an amenable number.

199268317 is a deficient number, since it is larger than the sum of its proper divisors (1).

199268317 is an equidigital number, since it uses as much as digits as its factorization.

199268317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 46.

The square root of 199268317 is about 14116.2430200107. The cubic root of 199268317 is about 584.0895248459.

The spelling of 199268317 in words is "one hundred ninety-nine million, two hundred sixty-eight thousand, three hundred seventeen".