Adding to 15401 its reverse (10451), we get a palindrome (25852).
Subtracting from 15401 its reverse (10451), we obtain a triangular number (4950 = T99).
15401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-15401 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is a Curzon number.
215401 is an apocalyptic number.
15401 is the 56-th centered decagonal number.
It is an amenable number.
15401 is an equidigital number, since it uses as much as digits as its factorization.
15401 is an odious number, because the sum of its binary digits is odd.
The square root of 15401 is about 124.1007655093. The cubic root of 15401 is about 24.8799578512.
The spelling of 15401 in words is "fifteen thousand, four hundred one".