164186 has 16 divisors (see below), whose sum is σ = 285120. Its totient is φ = 70080.

The previous prime is 164183. The next prime is 164191. The reversal of 164186 is 681461.

It is a Curzon number.

It is a plaindrome in base 15.

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (164183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155 + ... + 593.

It is an arithmetic number, because the mean of its divisors is an integer number (17820).

2¹⁶⁴¹⁸⁶ is an apocalyptic number.

164186 is a deficient number, since it is larger than the sum of its proper divisors (120934).

164186 is a wasteful number, since it uses less digits than its factorization.

164186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469.

The product of its digits is 1152, while the sum is 26.

The square root of 164186 is about 405.1987166811. The cubic root of 164186 is about 54.7577221998.

The spelling of 164186 in words is "one hundred sixty-four thousand, one hundred eighty-six".