205097273 has 2 divisors, whose sum is σ = 205097274. Its totient is φ = 205097272.

The previous prime is 205097261. The next prime is 205097281. The reversal of 205097273 is 372790502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196756729 + 8340544 = 14027^2 + 2888^2 .

It is a cyclic number.

It is not a de Polignac number, because 205097273 - 2⁸ = 205097017 is a prime.

It is not a weakly prime, because it can be changed into another prime (205097173) 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, 102548636 + 102548637.

It is an arithmetic number, because the mean of its divisors is an integer number (102548637).

Almost surely, 2^205097273 is an apocalyptic number.

It is an amenable number.

205097273 is a deficient number, since it is larger than the sum of its proper divisors (1).

205097273 is an equidigital number, since it uses as much as digits as its factorization.

205097273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 205097273 is about 14321.2175809182. The cubic root of 205097273 is about 589.7301006251.

The spelling of 205097273 in words is "two hundred five million, ninety-seven thousand, two hundred seventy-three".