205044859 has 2 divisors, whose sum is σ = 205044860. Its totient is φ = 205044858.

The previous prime is 205044823. The next prime is 205044869. The reversal of 205044859 is 958440502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205044859 is a prime.

It is not a weakly prime, because it can be changed into another prime (205044869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102522429 + 102522430.

It is an arithmetic number, because the mean of its divisors is an integer number (102522430).

Almost surely, 2^205044859 is an apocalyptic number.

205044859 is a deficient number, since it is larger than the sum of its proper divisors (1).

205044859 is an equidigital number, since it uses as much as digits as its factorization.

205044859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 205044859 is about 14319.3875218181. The cubic root of 205044859 is about 589.6798598353.

The spelling of 205044859 in words is "two hundred five million, forty-four thousand, eight hundred fifty-nine".