206246039 has 2 divisors, whose sum is σ = 206246040. Its totient is φ = 206246038.

The previous prime is 206246009. The next prime is 206246041. The reversal of 206246039 is 930642602.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206246039 is a prime.

Together with 206246041, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 206245996 and 206246014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206246009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103123019 + 103123020.

It is an arithmetic number, because the mean of its divisors is an integer number (103123020).

Almost surely, 2^206246039 is an apocalyptic number.

206246039 is a deficient number, since it is larger than the sum of its proper divisors (1).

206246039 is an equidigital number, since it uses as much as digits as its factorization.

206246039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 206246039 is about 14361.2687113639. The cubic root of 206246039 is about 590.8290929243.

The spelling of 206246039 in words is "two hundred six million, two hundred forty-six thousand, thirty-nine".