199268213 has 2 divisors, whose sum is σ = 199268214. Its totient is φ = 199268212.

The previous prime is 199268191. The next prime is 199268227. The reversal of 199268213 is 312862991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141538609 + 57729604 = 11897^2 + 7598^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199268213 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199268263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99634106 + 99634107.

It is an arithmetic number, because the mean of its divisors is an integer number (99634107).

Almost surely, 2^199268213 is an apocalyptic number.

It is an amenable number.

199268213 is a deficient number, since it is larger than the sum of its proper divisors (1).

199268213 is an equidigital number, since it uses as much as digits as its factorization.

199268213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 41.

The square root of 199268213 is about 14116.2393363105. The cubic root of 199268213 is about 584.0894232320.

The spelling of 199268213 in words is "one hundred ninety-nine million, two hundred sixty-eight thousand, two hundred thirteen".