3781141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a 5-Lehmer number, since φ(3781141) divides (3781141-1)5.
It is a cyclic number.
It is a deceptive number, since it divides R3781140.
3781141 is a lucky number.
It is a congruent number.
Almost surely, 23781141 is an apocalyptic number.
3781141 is the 1123-rd octagonal number.
It is an amenable number.
3781141 is a wasteful number, since it uses less digits than its factorization.
3781141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1180.
The square root of 3781141 is about 1944.5156209195. The cubic root of 3781141 is about 155.7904951184.
The spelling of 3781141 in words is "three million, seven hundred eighty-one thousand, one hundred forty-one".