Subtracting from 86142 its product of digits (384), we obtain a palindrome (85758).
It is an Ulam number.
It is a congruent number.
86142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
86142 is a Friedman number, since it can be written as 21*(8^4+6), using all its digits and the basic arithmetic operations.
286142 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 86142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100548).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
86142 is a wasteful number, since it uses less digits than its factorization.
86142 is an odious number, because the sum of its binary digits is odd.
The square root of 86142 is about 293.4995741053. The cubic root of 86142 is about 44.1643304013.
The spelling of 86142 in words is "eighty-six thousand, one hundred forty-two".