2116

Number
$2116$ (two thousand, one hundred and sixteen) is:


 * $2^2 \times 23^2$


 * The $46$th square number after $1, 4, 9, 16, 25, 36, \ldots, 1296, 1369, 1444, 1521, 1600, 1681, 1764, 1936, 2025$:
 * $2116 = 46 \times 46$


 * The $40$th positive integer which cannot be expressed as the sum of a square and a prime:
 * $1, 10, 25, 34, 58, 64, 85, \ldots, 1024, 1089, 1225, 1255, 1351, 1414, 1444, 1521, 1681, 1849, 1906, 1936, 2116, \ldots$