205812059 has 2 divisors, whose sum is σ = 205812060. Its totient is φ = 205812058.

The previous prime is 205812053. The next prime is 205812077. The reversal of 205812059 is 950218502.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205812059 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (205812053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102906029 + 102906030.

It is an arithmetic number, because the mean of its divisors is an integer number (102906030).

Almost surely, 2^205812059 is an apocalyptic number.

205812059 is a deficient number, since it is larger than the sum of its proper divisors (1).

205812059 is an equidigital number, since it uses as much as digits as its factorization.

205812059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 205812059 is about 14346.1513654360. The cubic root of 205812059 is about 590.4143971805.

The spelling of 205812059 in words is "two hundred five million, eight hundred twelve thousand, fifty-nine".