85106171 has 2 divisors, whose sum is σ = 85106172. Its totient is φ = 85106170.

The previous prime is 85106137. The next prime is 85106173. The reversal of 85106171 is 17160158.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85106171 - 2⁶ = 85106107 is a prime.

Together with 85106173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85106173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42553085 + 42553086.

It is an arithmetic number, because the mean of its divisors is an integer number (42553086).

Almost surely, 2^85106171 is an apocalyptic number.

85106171 is a deficient number, since it is larger than the sum of its proper divisors (1).

85106171 is an equidigital number, since it uses as much as digits as its factorization.

85106171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 85106171 is about 9225.3005913087. The cubic root of 85106171 is about 439.8659560691.

The spelling of 85106171 in words is "eighty-five million, one hundred six thousand, one hundred seventy-one".