205662241 has 2 divisors, whose sum is σ = 205662242. Its totient is φ = 205662240.

The previous prime is 205662199. The next prime is 205662341. The reversal of 205662241 is 142266502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122323600 + 83338641 = 11060^2 + 9129^2 .

It is a cyclic number.

It is not a de Polignac number, because 205662241 - 2¹⁷ = 205531169 is a prime.

It is not a weakly prime, because it can be changed into another prime (205662341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102831120 + 102831121.

It is an arithmetic number, because the mean of its divisors is an integer number (102831121).

Almost surely, 2^205662241 is an apocalyptic number.

It is an amenable number.

205662241 is a deficient number, since it is larger than the sum of its proper divisors (1).

205662241 is an equidigital number, since it uses as much as digits as its factorization.

205662241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 205662241 is about 14340.9288750764. The cubic root of 205662241 is about 590.2711011132.

It can be divided in two parts, 20566224 and 1, that added together give a square (20566225 = 4535²).

The spelling of 205662241 in words is "two hundred five million, six hundred sixty-two thousand, two hundred forty-one".