361

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


 * The $3$rd square after $49$, $169$ whose decimal representation can be split into two parts which are each themselves square:
 * $361 = 19^2$; $36 = 6^2$, $1 = 1^2$


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


 * 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 $32$nd powerful number after $1$, $4$, $8$, $9$, $16$, $25$, $\ldots$, $144$, $169$, $196$, $200$, $216$, $225$, $243$, $256$, $288$, $289$, $324$, $343$