164518 has 8 divisors (see below), whose sum is σ = 252648. Its totient is φ = 80304.

The previous prime is 164513. The next prime is 164531. The reversal of 164518 is 815461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 164492 and 164501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164513) by changing a digit.

164518 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 (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871 + ... + 1042.

It is an arithmetic number, because the mean of its divisors is an integer number (31581).

2¹⁶⁴⁵¹⁸ is an apocalyptic number.

164518 is a deficient number, since it is larger than the sum of its proper divisors (88130).

164518 is a wasteful number, since it uses less digits than its factorization.

164518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958.

The product of its digits is 960, while the sum is 25.

The square root of 164518 is about 405.6081853217. The cubic root of 164518 is about 54.7946058235.

Adding to 164518 its reverse (815461), we get a palindrome (979979).

The spelling of 164518 in words is "one hundred sixty-four thousand, five hundred eighteen".