The square root of 142884 is 378.
It is a tau number, because it is divible by the number of its divisors (63).
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142884.
It is an unprimeable number.
142884 is a Friedman number, since it can be written as (42*(8+1))^(8/4), using all its digits and the basic arithmetic operations.
2142884 is an apocalyptic number.
142884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
142884 is the 378-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 142884
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142884 is an equidigital number, since it uses as much as digits as its factorization.
142884 is an odious number, because the sum of its binary digits is odd.
The cubic root of 142884 is about 52.2790716021.
The spelling of 142884 in words is "one hundred forty-two thousand, eight hundred eighty-four".