205201097 has 2 divisors, whose sum is σ = 205201098. Its totient is φ = 205201096.

The previous prime is 205201081. The next prime is 205201103. The reversal of 205201097 is 790102502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200052736 + 5148361 = 14144^2 + 2269^2 .

It is a cyclic number.

It is not a de Polignac number, because 205201097 - 2⁴ = 205201081 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (205201027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102600548 + 102600549.

It is an arithmetic number, because the mean of its divisors is an integer number (102600549).

Almost surely, 2^205201097 is an apocalyptic number.

It is an amenable number.

205201097 is a deficient number, since it is larger than the sum of its proper divisors (1).

205201097 is an equidigital number, since it uses as much as digits as its factorization.

205201097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 205201097 is about 14324.8419537529. The cubic root of 205201097 is about 589.8295945683.

Adding to 205201097 its reverse (790102502), we get a palindrome (995303599).

The spelling of 205201097 in words is "two hundred five million, two hundred one thousand, ninety-seven".