what will be called 125, 153 ,152 and. 123, 647 and 1,236,836.

125 - One hundred twenty - five 153 - One hundred fifty - three 152 - One hundred fifty - two 123 - One hundred twenty - three 647 - Six hundred forty - seven The last should be written like this 12,36,836 or 1236836. We can say it:- 12,36,836 - Twelve lakh thirty - six thousand eight hundred thirty - six