3169

Number
$3169$ (three thousand, one hundred and sixty-nine) is:


 * The $449$th prime number


 * The $33$rd centered hexagonal number after $1, 7, 19, 37, 61, 91, 127, \ldots, 1801, 1951, 2107, 2269, 2437, 2611, 2791, 2977$:
 * $3169 = \displaystyle 1 + \sum_{k \mathop = 1}^{33 - 1} 6 k = 33^3 - 32^3$