205080193 has 2 divisors, whose sum is σ = 205080194. Its totient is φ = 205080192.

The previous prime is 205080191. The next prime is 205080203. The reversal of 205080193 is 391080502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154057744 + 51022449 = 12412^2 + 7143^2 .

It is a cyclic number.

It is not a de Polignac number, because 205080193 - 2¹ = 205080191 is a prime.

Together with 205080191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (205080191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102540096 + 102540097.

It is an arithmetic number, because the mean of its divisors is an integer number (102540097).

Almost surely, 2^205080193 is an apocalyptic number.

It is an amenable number.

205080193 is a deficient number, since it is larger than the sum of its proper divisors (1).

205080193 is an equidigital number, since it uses as much as digits as its factorization.

205080193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 205080193 is about 14320.6212504905. The cubic root of 205080193 is about 589.7137297432.

The spelling of 205080193 in words is "two hundred five million, eighty thousand, one hundred ninety-three".