189164 has 18 divisors (see below), whose sum is σ = 352044. Its totient is φ = 88920.

The previous prime is 189151. The next prime is 189169. The reversal of 189164 is 461981.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (189169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1379 + ... + 1509.

It is an arithmetic number, because the mean of its divisors is an integer number (19558).

2¹⁸⁹¹⁶⁴ is an apocalyptic number.

It is an amenable number.

189164 is a deficient number, since it is larger than the sum of its proper divisors (162880).

189164 is a wasteful number, since it uses less digits than its factorization.

189164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 152 counting only the distinct ones).

The product of its digits is 1728, while the sum is 29.

The square root of 189164 is about 434.9298794059. The cubic root of 189164 is about 57.4045296639.

It can be divided in two parts, 189 and 164, that added together give a palindrome (353).

The spelling of 189164 in words is "one hundred eighty-nine thousand, one hundred sixty-four".