164123 has 4 divisors (see below), whose sum is σ = 168168. Its totient is φ = 160080.

The previous prime is 164117. The next prime is 164147. The reversal of 164123 is 321461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164123 - 2¹⁴ = 147739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164113) 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 3 ways as a sum of consecutive naturals, for example, 1961 + ... + 2042.

It is an arithmetic number, because the mean of its divisors is an integer number (42042).

2¹⁶⁴¹²³ is an apocalyptic number.

164123 is a deficient number, since it is larger than the sum of its proper divisors (4045).

164123 is an equidigital number, since it uses as much as digits as its factorization.

164123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044.

The product of its digits is 144, while the sum is 17.

The square root of 164123 is about 405.1209695881. The cubic root of 164123 is about 54.7507175875.

Adding to 164123 its reverse (321461), we get a palindrome (485584).

The spelling of 164123 in words is "one hundred sixty-four thousand, one hundred twenty-three".