189169 has 2 divisors, whose sum is σ = 189170. Its totient is φ = 189168.

The previous prime is 189151. The next prime is 189187. The reversal of 189169 is 961981.

It is a balanced prime because it is at equal distance from previous prime (189151) and next prime (189187).

It can be written as a sum of positive squares in only one way, i.e., 176400 + 12769 = 420^2 + 113^2 .

It is an emirp because it is prime and its reverse (961981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189169 - 2⁷ = 189041 is a prime.

It is a super-2 number, since 2×189169² = 71569821122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (189139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94584 + 94585.

It is an arithmetic number, because the mean of its divisors is an integer number (94585).

2¹⁸⁹¹⁶⁹ is an apocalyptic number.

It is an amenable number.

189169 is a deficient number, since it is larger than the sum of its proper divisors (1).

189169 is an equidigital number, since it uses as much as digits as its factorization.

189169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 34.

The square root of 189169 is about 434.9356274209. The cubic root of 189169 is about 57.4050354334.

The spelling of 189169 in words is "one hundred eighty-nine thousand, one hundred sixty-nine".