Adding to 2147 its reverse (7412), we get a palindrome (9559).
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is an alternating number because its digits alternate between even and odd.
It is a plaindrome in base 12.
It is a nialpdrome in base 13, base 15 and base 16.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 2147.
2147 is the 38-th pentagonal number.
2147 is a wasteful number, since it uses less digits than its factorization.
2147 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 132.
The square root of 2147 is about 46.3357313528. The cubic root of 2147 is about 12.9006229293.
The spelling of 2147 in words is "two thousand, one hundred forty-seven", and thus it is an iban number.