171005171 has 2 divisors, whose sum is σ = 171005172. Its totient is φ = 171005170.

The previous prime is 171005113. The next prime is 171005203. The reversal of 171005171 is 171500171.

171005171 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 a de Polignac number, because none of the positive numbers 2^k-171005171 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (173005171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85502585 + 85502586.

It is an arithmetic number, because the mean of its divisors is an integer number (85502586).

Almost surely, 2^171005171 is an apocalyptic number.

171005171 is a deficient number, since it is larger than the sum of its proper divisors (1).

171005171 is an equidigital number, since it uses as much as digits as its factorization.

171005171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 245, while the sum is 23.

The square root of 171005171 is about 13076.8945472539. The cubic root of 171005171 is about 555.0555050946.

The spelling of 171005171 in words is "one hundred seventy-one million, five thousand, one hundred seventy-one".