205043 has 2 divisors, whose sum is σ = 205044. Its totient is φ = 205042.

The previous prime is 205033. The next prime is 205063. The reversal of 205043 is 340502.

205043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205043 - 2⁶ = 204979 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (205033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102521 + 102522.

It is an arithmetic number, because the mean of its divisors is an integer number (102522).

2²⁰⁵⁰⁴³ is an apocalyptic number.

205043 is a deficient number, since it is larger than the sum of its proper divisors (1).

205043 is an equidigital number, since it uses as much as digits as its factorization.

205043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 205043 is about 452.8167399732. The cubic root of 205043 is about 58.9678077757.

Adding to 205043 its reverse (340502), we get a palindrome (545545).

The spelling of 205043 in words is "two hundred five thousand, forty-three".