169871171 has 2 divisors, whose sum is σ = 169871172. Its totient is φ = 169871170.

The previous prime is 169871161. The next prime is 169871173. The reversal of 169871171 is 171178961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 169871171 - 2¹⁴ = 169854787 is a prime.

It is a super-2 number, since 2×169871171² = 57712429473822482, which contains 22 as substring.

Together with 169871173, 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 (169871173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84935585 + 84935586.

It is an arithmetic number, because the mean of its divisors is an integer number (84935586).

Almost surely, 2^169871171 is an apocalyptic number.

169871171 is a deficient number, since it is larger than the sum of its proper divisors (1).

169871171 is an equidigital number, since it uses as much as digits as its factorization.

169871171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 41.

The square root of 169871171 is about 13033.4635074488. The cubic root of 169871171 is about 553.8258552860.

The spelling of 169871171 in words is "one hundred sixty-nine million, eight hundred seventy-one thousand, one hundred seventy-one".