205275073 has 2 divisors, whose sum is σ = 205275074. Its totient is φ = 205275072.

The previous prime is 205275043. The next prime is 205275139. The reversal of 205275073 is 370572502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104714289 + 100560784 = 10233^2 + 10028^2 .

It is a cyclic number.

It is not a de Polignac number, because 205275073 - 2¹⁷ = 205144001 is a prime.

It is not a weakly prime, because it can be changed into another prime (205275043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102637536 + 102637537.

It is an arithmetic number, because the mean of its divisors is an integer number (102637537).

Almost surely, 2^205275073 is an apocalyptic number.

It is an amenable number.

205275073 is a deficient number, since it is larger than the sum of its proper divisors (1).

205275073 is an equidigital number, since it uses as much as digits as its factorization.

205275073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 205275073 is about 14327.4238089058. The cubic root of 205275073 is about 589.9004648714.

It can be divided in two parts, 20527 and 5073, that added together give a square (25600 = 160²).

The spelling of 205275073 in words is "two hundred five million, two hundred seventy-five thousand, seventy-three".