Adding to 147996 its product of digits (13608), we get a square (161604 = 4022).
It is a tau number, because it is divible by the number of its divisors (18).
It is a self number, because there is not a number n which added to its sum of digits gives 147996.
It is a congruent number.
147996 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
147996 is a Friedman number, since it can be written as 9*(61+4^7)-9, using all its digits and the basic arithmetic operations.
2147996 is an apocalyptic number.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
147996 is a wasteful number, since it uses less digits than its factorization.
147996 is an evil number, because the sum of its binary digits is even.
The square root of 147996 is about 384.7024824459. The cubic root of 147996 is about 52.8952481846.
The spelling of 147996 in words is "one hundred forty-seven thousand, nine hundred ninety-six".