Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_64 ( population INTEGER, area__km_2__ VARCHAR, type VARCHAR, name VARCHAR )

### Question ###
Saint-Blaise-Sur-Richelieu is smaller than 68.42 km^2, what is the population of this type M municipality?

### Accurate SQL ###

SELECT MIN(population) FROM table_name_64 WHERE type = "m" AND name = "saint-blaise-sur-richelieu" AND area__km_2__ < 68.42