The Smallest Number (Of course a multiple of 3) which reaches 153 in 15 cycles is 44499999999999999999, which in short can be represented as 4₃9₁₇ i.e.

44499999999999999999® 12585® 771®687 ® 1071® 345®216® 225® 141® 66® 432® 99® 1458® 702® 351® 153