It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-28135 is a prime.
It is a Duffinian number.
It is a nialpdrome in base 13.
It is a congruent number.
It is an unprimeable number.
228135 is an apocalyptic number.
28135 is a wasteful number, since it uses less digits than its factorization.
28135 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 353.
The square root of 28135 is about 167.7349099025. The cubic root of 28135 is about 30.4146138186.
The spelling of 28135 in words is "twenty-eight thousand, one hundred thirty-five".