Subtracting from 15841 its reverse (14851), we obtain a triangular number (990 = T44).
15841 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a 2-Lehmer number, since φ(15841) divides (15841-1)2.
It is a cyclic number.
It is a Carmichael number.
It is a deceptive number, since it divides R15840.
It is a Duffinian number.
It is a congruent number.
It is a Poulet number, since it divides 215840-1.
215841 is an apocalyptic number.
15841 is the 73-rd octagonal number.
It is an amenable number.
15841 is an equidigital number, since it uses as much as digits as its factorization.
15841 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 111.
The square root of 15841 is about 125.8610344785. The cubic root of 15841 is about 25.1146731981.
The spelling of 15841 in words is "fifteen thousand, eight hundred forty-one".