It is a happy number.
38121 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 an alternating number because its digits alternate between odd and even.
It is a Curzon number.
38121 is a lucky number.
It is a self number, because there is not a number n which added to its sum of digits gives 38121.
238121 is an apocalyptic number.
It is an amenable number.
38121 is a wasteful number, since it uses less digits than its factorization.
38121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 231.
The square root of 38121 is about 195.2459986786. The cubic root of 38121 is about 33.6554003845.
The spelling of 38121 in words is "thirty-eight thousand, one hundred twenty-one".