1141

Number
$1141$ (one thousand, one hundred and forty-one) is:
 * $7 \times 163$


 * The $20$th centered hexagonal number after $1$, $7$, $19$, $37$, $61$, $91$, $127$, $169$, $217$, $271$, $331$, $397$, $469$, $547$, $631$, $721$, $817$, $919$, $1027$:
 * $1141 = \ds 1 + \sum_{k \mathop = 1}^{20 - 1} 6 k = 20^3 - 19^3$


 * The smallest known integer whose $6$th power can be expressed as the sum of $7$ smaller $6$th powers:
 * $1141^6 = 74^6 + 234^6 + 402^6 + 474^6 + 702^6 + 894^6 + 1077^6$

Also see

 * Sixth Power as Sum of 7 Sixth Powers