• 14142 = 1999396 is the smallest square that contains exactly four digits '9'.
It is a sphenic number, since it is the product of 3 distinct primes.
It is an alternating number because its digits alternate between odd and even.
1414 is an undulating number in base 10.
It is a plaindrome in base 12.
It is a nialpdrome in base 14 and base 15.
It is a self number, because there is not a number n which added to its sum of digits gives 1414.
It is a congruent number.
It is an unprimeable number.
1414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
1414 is a wasteful number, since it uses less digits than its factorization.
1414 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 110.
The square root of 1414 is about 37.6031913539. The cubic root of 1414 is about 11.2240554394.
Adding to 1414 its reverse (4141), we get a palindrome (5555).
The spelling of 1414 in words is "one thousand, four hundred fourteen", and thus it is an iban number.