Abraham lived 175 years, and "died in a good old age". The Bible says he was buried by his sons Isaac and Ishmael in the cave of Machpelah.
And these are the days of the years of Abraham's life which he lived, an hundred threescore and fifteen years.
Then Abraham gave up the ghost, and died in a good old age, an old man, and full of years; and was gathered to his people.
And his sons Isaac and Ishmael buried him in the cave of Machpelah, in the field of Ephron the son of Zohar the Hittite, which is before Mamre;
The field which Abraham purchased of the sons of Heth: there was Abraham buried, and Sarah his wife.