וְהַשּֽׁוֹעֲרִים֙ עַקּ֣וּב טַלְמ֔וֹן וַאֲחֵיהֶ֖ם הַשֹּׁמְרִ֣ים בַּשְּׁעָרִ֑ים מֵאָ֖ה שִׁבְעִ֥ים וּשְׁנָֽיִם׃
Moreover the porters, Akkub, Talmon, and their brethren, that kept watch at the gates, were a hundred seventy and two.
Read kabbalistic (mystical) interpretation of Nehemiah 11:19: and classical mystical sources.