205302133 has 2 divisors, whose sum is σ = 205302134. Its totient is φ = 205302132.

The previous prime is 205302121. The next prime is 205302143. The reversal of 205302133 is 331203502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205262929 + 39204 = 14327^2 + 198^2 .

It is a cyclic number.

It is not a de Polignac number, because 205302133 - 2⁵ = 205302101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 205302133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205302103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102651066 + 102651067.

It is an arithmetic number, because the mean of its divisors is an integer number (102651067).

Almost surely, 2^205302133 is an apocalyptic number.

It is an amenable number.

205302133 is a deficient number, since it is larger than the sum of its proper divisors (1).

205302133 is an equidigital number, since it uses as much as digits as its factorization.

205302133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 205302133 is about 14328.3681206200. The cubic root of 205302133 is about 589.9263845718.

Adding to 205302133 its reverse (331203502), we get a palindrome (536505635).

The spelling of 205302133 in words is "two hundred five million, three hundred two thousand, one hundred thirty-three".