206272771 has 2 divisors, whose sum is σ = 206272772. Its totient is φ = 206272770.

The previous prime is 206272733. The next prime is 206272777. The reversal of 206272771 is 177272602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206272771 - 2⁷ = 206272643 is a prime.

It is not a weakly prime, because it can be changed into another prime (206272777) 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, 103136385 + 103136386.

It is an arithmetic number, because the mean of its divisors is an integer number (103136386).

Almost surely, 2^206272771 is an apocalyptic number.

206272771 is a deficient number, since it is larger than the sum of its proper divisors (1).

206272771 is an equidigital number, since it uses as much as digits as its factorization.

206272771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 206272771 is about 14362.1993789252. The cubic root of 206272771 is about 590.8546180383.

The spelling of 206272771 in words is "two hundred six million, two hundred seventy-two thousand, seven hundred seventy-one".