205900411 has 2 divisors, whose sum is σ = 205900412. Its totient is φ = 205900410.

The previous prime is 205900391. The next prime is 205900427. The reversal of 205900411 is 114009502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205900411 - 2¹⁹ = 205376123 is a prime.

It is not a weakly prime, because it can be changed into another prime (205904411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102950205 + 102950206.

It is an arithmetic number, because the mean of its divisors is an integer number (102950206).

Almost surely, 2^205900411 is an apocalyptic number.

205900411 is a deficient number, since it is larger than the sum of its proper divisors (1).

205900411 is an equidigital number, since it uses as much as digits as its factorization.

205900411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 205900411 is about 14349.2303277911. The cubic root of 205900411 is about 590.4988704136.

Adding to 205900411 its reverse (114009502), we get a palindrome (319909913).

The spelling of 205900411 in words is "two hundred five million, nine hundred thousand, four hundred eleven".