Provided herein are heteroaryl compounds, for example, a compound of Formula I or IA, and pharmaceutical compositions thereof. Also provided herein are methods of their use for treating, ameliorating, or preventing one or more symptoms of a disorder, disease, or condition mediated by a casein kinase 1 (CK1), an interleukin-1 receptor associated kinase (IRAK1), or a cyclin-dependent kinase 9 (CDK9). Formula: (I),(IA)