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_254234_1 (iso_ VARCHAR, density² VARCHAR)
### Question:
How many provinces have a density of 165.81?
### Answer:
SELECT COUNT(iso_) AS № FROM table_254234_1 WHERE density² = "165.81"