Adding to 31416 its reverse (61413), we get a palindrome (92829).
It is a nude number because it is divisible by every one of its digits.
It is a nialpdrome in base 14.
It is a congruent number.
It is an unprimeable number.
31416 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
231416 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 31416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51840).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31416 is a wasteful number, since it uses less digits than its factorization.
31416 is an odious number, because the sum of its binary digits is odd.
The square root of 31416 is about 177.2455923288. The cubic root of 31416 is about 31.5537002884.
The spelling of 31416 in words is "thirty-one thousand, four hundred sixteen".