361

Number
$361$ (three hundred and sixty-one) is:
 * $19^2$


 * The $19$th square number after $1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225, 256, 289, 324$:
 * $361 = 19 \times 19$


 * The $8$th square lucky number:
 * $1, 9, 25, 49, 169, 289, 361, \ldots$