Round this number to the nearest million

135,458,267

1,000,000 is million

to round look at hundred thousand place or 100,000

see number before million (after comma)

if it is greater than or equal to 5, add 1 to current value of million and say all after is 0

if less than 5 then leave million value as is and make after 0

135,458,267

hundred thousand value is 4

4<5

135,000,000