171169 has 2 divisors, whose sum is σ = 171170. Its totient is φ = 171168.

The previous prime is 171167. The next prime is 171179. The reversal of 171169 is 961171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113569 + 57600 = 337^2 + 240^2 .

It is a cyclic number.

It is not a de Polignac number, because 171169 - 2¹ = 171167 is a prime.

It is a super-2 number, since 2×171169² = 58597653122, which contains 22 as substring.

Together with 171167, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (171161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85584 + 85585.

It is an arithmetic number, because the mean of its divisors is an integer number (85585).

2¹⁷¹¹⁶⁹ is an apocalyptic number.

It is an amenable number.

171169 is a deficient number, since it is larger than the sum of its proper divisors (1).

171169 is an equidigital number, since it uses as much as digits as its factorization.

171169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378, while the sum is 25.

The square root of 171169 is about 413.7257545766. The cubic root of 171169 is about 55.5232702786.

The spelling of 171169 in words is "one hundred seventy-one thousand, one hundred sixty-nine".