205066039 has 2 divisors, whose sum is σ = 205066040. Its totient is φ = 205066038.

The previous prime is 205066033. The next prime is 205066049. The reversal of 205066039 is 930660502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205066039 - 2⁵ = 205066007 is a prime.

It is a super-2 number, since 2×205066039² = 84104160702299042, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 205066039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205066033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102533019 + 102533020.

It is an arithmetic number, because the mean of its divisors is an integer number (102533020).

Almost surely, 2^205066039 is an apocalyptic number.

205066039 is a deficient number, since it is larger than the sum of its proper divisors (1).

205066039 is an equidigital number, since it uses as much as digits as its factorization.

205066039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 205066039 is about 14320.1270594922. The cubic root of 205066039 is about 589.7001626924.

The spelling of 205066039 in words is "two hundred five million, sixty-six thousand, thirty-nine".