Qoph = 100, ordinal 19, reduced 1, no final form. Spelled in full, קוף = 100+6+80 = 186.
Meaning
Qoph is 'back of the head' or, in the older guess, the eye of a needle; its shape descends below the line of the script, which the tradition reads as the descent of the holy into the world. Its 100 is the number of the hundred blessings and of the hundred cubits of the sanctuary court, and qoph is the initial of kedushah, holiness, which the handlists make the letter's whole office.