164738 is nontrivially palindromic in base 16.
It is an ABA number since it can be written as A⋅BA, here for A=2, B=287.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 164738.
It is an unprimeable number.
164738 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2164738 is an apocalyptic number.
164738 is an equidigital number, since it uses as much as digits as its factorization.
164738 is an evil number, because the sum of its binary digits is even.
The square root of 164738 is about 405.8792924011. The cubic root of 164738 is about 54.8190194517.
The spelling of 164738 in words is "one hundred sixty-four thousand, seven hundred thirty-eight".