It is a happy number.
It is a tau number, because it is divible by the number of its divisors (36).
It is an alternating number because its digits alternate between even and odd.
It is a nialpdrome in base 6.
It is a zygodrome in base 6.
245612 is an apocalyptic number.
45612 is a gapful number since it is divisible by the number (42) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 45612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66248).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
45612 is a wasteful number, since it uses less digits than its factorization.
45612 is an odious number, because the sum of its binary digits is odd.
The square root of 45612 is about 213.5696607667. The cubic root of 45612 is about 35.7294533670.
The spelling of 45612 in words is "forty-five thousand, six hundred twelve".