Short answers, pulled from the story.
The anglicized name Isaac is a transliteration of the Hebrew word that literally means he laughs or will laugh. Ugaritic texts dating from the 13th century BCE refer to the benevolent smile of the Canaanite deity El.
Isaac was Abraham's second son and firstborn of Sarah who was then Sarai. On the eighth day from his birth Isaac was circumcised as was necessary for all males of Abraham's household in order to be in compliance with the Jewish covenant.
Some Talmudic sages take it to be thirty seven likely based on the next biblical story which is of Sarah's death at 127 years being 90 when Isaac was born. Rabbinic literature also linked Isaac's blindness in old age as stated in the Bible to the sacrificial binding.
Israel Finkelstein and Thomas Römer have proposed that Isaac might be the ancestor worshipped in Beersheba and the oldest tradition about him might be an ancestor myth dating back to at least 8th century BCE as shown in Amos 7:9.
Isaac is commemorated in the Catholic Church on the 25th of March or on the 17th of December. His feast day is celebrated in the Eastern Orthodox Church and the Byzantine rite of the Catholic Church on the Second Sunday before Christmas under the title the Sunday of the Forefathers.