199007213 has 2 divisors, whose sum is σ = 199007214. Its totient is φ = 199007212.

The previous prime is 199007131. The next prime is 199007243. The reversal of 199007213 is 312700991.

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., 167624809 + 31382404 = 12947^2 + 5602^2 .

It is an emirp because it is prime and its reverse (312700991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199007213 - 2⁸ = 199006957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199007213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199007243) 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, 99503606 + 99503607.

It is an arithmetic number, because the mean of its divisors is an integer number (99503607).

Almost surely, 2^199007213 is an apocalyptic number.

It is an amenable number.

199007213 is a deficient number, since it is larger than the sum of its proper divisors (1).

199007213 is an equidigital number, since it uses as much as digits as its factorization.

199007213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 199007213 is about 14106.9916353559. The cubic root of 199007213 is about 583.8342998419.

The spelling of 199007213 in words is "one hundred ninety-nine million, seven thousand, two hundred thirteen".