Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_23248420_1 (rank INTEGER, population VARCHAR)
### Question:
When 142900 is the population what is the highest rank?
### Answer:
SELECT MAX(rank) FROM table_23248420_1 WHERE population = 142900