Noteworthy, notable, memorable mean having some quality that attracts one’s attention.
Noteworthy implies a quality and often a degree of excellence in a person or thing that justifies observation or remark.
Notable too stresses the power of a person or thing to attract attention, but often it distinctively connotes such a special feature as an excellence, a virtue, a value, or a significance that gives rise to its being noted or remembered.
Memorable stresses the capacity in a person or thing not only of attracting attention but of being worthy to be remembered; it sometimes implies a personal reason for remembrance.