164994 has 16 divisors (see below), whose sum is σ = 334368. Its totient is φ = 54272.

The previous prime is 164987. The next prime is 164999. The reversal of 164994 is 499461.

164994 is nontrivially palindromic in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 164994.

It is not an unprimeable number, because it can be changed into a prime (164999) by changing a digit.

164994 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514 + ... + 770.

It is an arithmetic number, because the mean of its divisors is an integer number (20898).

2¹⁶⁴⁹⁹⁴ is an apocalyptic number.

164994 is an abundant number, since it is smaller than the sum of its proper divisors (169374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164994 is a wasteful number, since it uses less digits than its factorization.

164994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369.

The product of its digits is 7776, while the sum is 33.

The square root of 164994 is about 406.1945346752. The cubic root of 164994 is about 54.8474006912.

The spelling of 164994 in words is "one hundred sixty-four thousand, nine hundred ninety-four".