Adding to 162401 its reverse (104261), we get a palindrome (266662).
162401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a 2-Lehmer number, since φ(162401) divides (162401-1)2.
It is a cyclic number.
It is a Carmichael number.
It is a deceptive number, since it divides R162400.
It is a Duffinian number.
It is a congruent number.
It is a Poulet number, since it divides 2162400-1.
2162401 is an apocalyptic number.
162401 is the 233-rd octagonal number.
It is an amenable number.
162401 is a wasteful number, since it uses less digits than its factorization.
162401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 291.
The square root of 162401 is about 402.9900743195. The cubic root of 162401 is about 54.5585600664.
The spelling of 162401 in words is "one hundred sixty-two thousand, four hundred one".