205173193 has 2 divisors, whose sum is σ = 205173194. Its totient is φ = 205173192.

The previous prime is 205173169. The next prime is 205173209. The reversal of 205173193 is 391371502.

205173193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196364169 + 8809024 = 14013^2 + 2968^2 .

It is a cyclic number.

It is not a de Polignac number, because 205173193 - 2⁵ = 205173161 is a prime.

It is not a weakly prime, because it can be changed into another prime (205173113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102586596 + 102586597.

It is an arithmetic number, because the mean of its divisors is an integer number (102586597).

Almost surely, 2^205173193 is an apocalyptic number.

It is an amenable number.

205173193 is a deficient number, since it is larger than the sum of its proper divisors (1).

205173193 is an equidigital number, since it uses as much as digits as its factorization.

205173193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 205173193 is about 14323.8679482883. The cubic root of 205173193 is about 589.8028576237.

The spelling of 205173193 in words is "two hundred five million, one hundred seventy-three thousand, one hundred ninety-three".