249

Number
$249$ (two hundred and forty-nine) is:


 * $3 \times 83$


 * The $14$th trimorphic number after $1, 4, 5, 6, 9, 24, 25, 49, 51, 75, 76, 99, 125$:
 * $249^3 = 15 \, 438 \, \mathbf {249}$


 * The index (after $2, 3, 6, 30, 75, 81, 115, 123$) of the $9$th Woodall prime:
 * $249 \times 2^{249} - 1$