206044039 has 2 divisors, whose sum is σ = 206044040. Its totient is φ = 206044038.

The previous prime is 206044021. The next prime is 206044049. The reversal of 206044039 is 930440602.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206044039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206043998 and 206044016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206044049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103022019 + 103022020.

It is an arithmetic number, because the mean of its divisors is an integer number (103022020).

Almost surely, 2^206044039 is an apocalyptic number.

206044039 is a deficient number, since it is larger than the sum of its proper divisors (1).

206044039 is an equidigital number, since it uses as much as digits as its factorization.

206044039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 206044039 is about 14354.2341836825. The cubic root of 206044039 is about 590.6361414021.

The spelling of 206044039 in words is "two hundred six million, forty-four thousand, thirty-nine".