腐 means rotten and is a JLPT N1 kanji. It has 14 strokes and uses the meat radical (肉).
Stroke order · 14 strokes
On'yomi (音読み)
フ
Kun'yomi (訓読み)
くさ(る)、
Radical
肉 · meat
Strokes
14
How to remember 腐
Meat (肉) spoiling in storage (府) — decay. But 豆腐!! — that 'rotten bean' named delicacy; don't worry, it's just fermentation tradition! 腐る means to rot.