This is the 5546th most frequent Russian word.
полутора
"Полутора" means "one and a half" in English.
The word 'полутора' is used in the genitive case of masculine nouns following the notion of 'one and a half'.
Мы гуляли около полутора часов.
We walked for about one and a half hours.
Here, 'полутора' is used in the genitive case of a plural noun to denote the duration of time.
Я прочитал книгу за полутора дня.
I read the book in one and a half days.
This context humorously uses 'полутора' to indicate an incomplete or fractional quantitative value.