205336213 has 2 divisors, whose sum is σ = 205336214. Its totient is φ = 205336212.

The previous prime is 205336177. The next prime is 205336237. The reversal of 205336213 is 312633502.

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., 167365969 + 37970244 = 12937^2 + 6162^2 .

It is a cyclic number.

It is not a de Polignac number, because 205336213 - 2⁹ = 205335701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205336253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102668106 + 102668107.

It is an arithmetic number, because the mean of its divisors is an integer number (102668107).

Almost surely, 2^205336213 is an apocalyptic number.

It is an amenable number.

205336213 is a deficient number, since it is larger than the sum of its proper divisors (1).

205336213 is an equidigital number, since it uses as much as digits as its factorization.

205336213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 205336213 is about 14329.5573204478. The cubic root of 205336213 is about 589.9590252115.

Adding to 205336213 its reverse (312633502), we get a palindrome (517969715).

The spelling of 205336213 in words is "two hundred five million, three hundred thirty-six thousand, two hundred thirteen".