Adding to 31415 its reverse (51413), we get a palindrome (82828).
31415 is digitally balanced in base 6, 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 Duffinian number.
31415 is strictly pandigital in base 6.
It is a self number, because there is not a number n which added to its sum of digits gives 31415.
It is a congruent number.
It is an unprimeable number.
231415 is an apocalyptic number.
31415 is a wasteful number, since it uses less digits than its factorization.
31415 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 169.
The square root of 31415 is about 177.2427713618. The cubic root of 31415 is about 31.5533654905.
The spelling of 31415 in words is "thirty-one thousand, four hundred fifteen".