206555159 has 2 divisors, whose sum is σ = 206555160. Its totient is φ = 206555158.

The previous prime is 206555149. The next prime is 206555183. The reversal of 206555159 is 951555602.

206555159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206555159 - 2⁴ = 206555143 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206555149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103277579 + 103277580.

It is an arithmetic number, because the mean of its divisors is an integer number (103277580).

Almost surely, 2^206555159 is an apocalyptic number.

206555159 is a deficient number, since it is larger than the sum of its proper divisors (1).

206555159 is an equidigital number, since it uses as much as digits as its factorization.

206555159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67500, while the sum is 38.

The square root of 206555159 is about 14372.0269621233. The cubic root of 206555159 is about 591.1241222995.

The spelling of 206555159 in words is "two hundred six million, five hundred fifty-five thousand, one hundred fifty-nine".