206336213 has 2 divisors, whose sum is σ = 206336214. Its totient is φ = 206336212.

The previous prime is 206336209. The next prime is 206336227. The reversal of 206336213 is 312633602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206267044 + 69169 = 14362^2 + 263^2 .

It is a cyclic number.

It is not a de Polignac number, because 206336213 - 2² = 206336209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206336203) 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, 103168106 + 103168107.

It is an arithmetic number, because the mean of its divisors is an integer number (103168107).

Almost surely, 2^206336213 is an apocalyptic number.

It is an amenable number.

206336213 is a deficient number, since it is larger than the sum of its proper divisors (1).

206336213 is an equidigital number, since it uses as much as digits as its factorization.

206336213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 206336213 is about 14364.4078541373. The cubic root of 206336213 is about 590.9151869574.

Adding to 206336213 its reverse (312633602), we get a palindrome (518969815).

The spelling of 206336213 in words is "two hundred six million, three hundred thirty-six thousand, two hundred thirteen".