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_54 ( round INTEGER, position VARCHAR, pick VARCHAR )

### Question ###
What is the largest round number for the dt position when the pick number is bigger than 181?

### Accurate SQL ###

SELECT MAX(round) FROM table_name_54 WHERE position = "dt" AND pick > 181