205441 has 2 divisors, whose sum is σ = 205442. Its totient is φ = 205440.

The previous prime is 205433. The next prime is 205453. The reversal of 205441 is 144502.

205441 = 320² + 321².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103041 + 102400 = 321^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 205441 - 2³ = 205433 is a prime.

It is not a weakly prime, because it can be changed into another prime (205421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102720 + 102721.

It is an arithmetic number, because the mean of its divisors is an integer number (102721).

2²⁰⁵⁴⁴¹ is an apocalyptic number.

205441 is the 321-st centered square number.

It is an amenable number.

205441 is a deficient number, since it is larger than the sum of its proper divisors (1).

205441 is an equidigital number, since it uses as much as digits as its factorization.

205441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 205441 is about 453.2559983056. The cubic root of 205441 is about 59.0059363940.

Adding to 205441 its reverse (144502), we get a palindrome (349943).

It can be divided in two parts, 205 and 441, that added together give a palindrome (646).

The spelling of 205441 in words is "two hundred five thousand, four hundred forty-one".