206771171 has 2 divisors, whose sum is σ = 206771172. Its totient is φ = 206771170.

The previous prime is 206771141. The next prime is 206771183. The reversal of 206771171 is 171177602.

It is a happy number.

206771171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206771171 - 2²⁶ = 139662307 is a prime.

It is a super-2 number, since 2×206771171² = 85508634313422482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (206771111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103385585 + 103385586.

It is an arithmetic number, because the mean of its divisors is an integer number (103385586).

Almost surely, 2^206771171 is an apocalyptic number.

206771171 is a deficient number, since it is larger than the sum of its proper divisors (1).

206771171 is an equidigital number, since it uses as much as digits as its factorization.

206771171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4116, while the sum is 32.

The square root of 206771171 is about 14379.5400135053. The cubic root of 206771171 is about 591.3301131485.

The spelling of 206771171 in words is "two hundred six million, seven hundred seventy-one thousand, one hundred seventy-one".