163170169 has 2 divisors, whose sum is σ = 163170170. Its totient is φ = 163170168.

The previous prime is 163170127. The next prime is 163170187. The reversal of 163170169 is 961071361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131675625 + 31494544 = 11475^2 + 5612^2 .

It is a cyclic number.

It is not a de Polignac number, because 163170169 - 2¹¹ = 163168121 is a prime.

It is a super-2 number, since 2×163170169² = 53249008102977122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (163170109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81585084 + 81585085.

It is an arithmetic number, because the mean of its divisors is an integer number (81585085).

Almost surely, 2^163170169 is an apocalyptic number.

It is an amenable number.

163170169 is a deficient number, since it is larger than the sum of its proper divisors (1).

163170169 is an equidigital number, since it uses as much as digits as its factorization.

163170169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 163170169 is about 12773.8079287267. The cubic root of 163170169 is about 546.4455845977.

The spelling of 163170169 in words is "one hundred sixty-three million, one hundred seventy thousand, one hundred sixty-nine".