164603 has 4 divisors (see below), whose sum is σ = 165528. Its totient is φ = 163680.

The previous prime is 164599. The next prime is 164617. The reversal of 164603 is 306461.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 306461 = 43 ⋅7127.

It is a cyclic number.

It is not a de Polignac number, because 164603 - 2² = 164599 is a prime.

It is a super-3 number, since 3×164603³ = 13379333936652681, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101 + ... + 582.

It is an arithmetic number, because the mean of its divisors is an integer number (41382).

2¹⁶⁴⁶⁰³ is an apocalyptic number.

164603 is a deficient number, since it is larger than the sum of its proper divisors (925).

164603 is an equidigital number, since it uses as much as digits as its factorization.

164603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 164603 is about 405.7129527141. The cubic root of 164603 is about 54.8040409402.

It can be divided in two parts, 164 and 603, that added together give a palindrome (767).

The spelling of 164603 in words is "one hundred sixty-four thousand, six hundred three".