This is a very interesting number. Multiplying it by a number from 1 to 6 will give the result of the same numbers in the same order, but with a different offset. Like
142857 * 2 = 285714
142857 * 3 = 428571
This number also seems to have interesting relations with number 7. Multiplying it by 7 will give 999999. One seventh is 0.142857142857142857... Any number that isn't evenly divisible by 7 divided by 7 will give a result with decimals that end up with 142857 repeating itself endlessly.
One who are extremely lucky, usually in a FPS game (especially Counter-Strike) by shooting a random shot which kills someone, or killing several people within a short time.
*** luckmaster3000 killed -=(phj33r)=-d00d.own0r with a headshot from m249 ***
*** luckmaster3000 killed ==kthxdie==^w00t4g3 with a headshot from m249 ***
*** luckmaster3000 killed HeatoNWannabE^ with a headshot from m249 ***