+137 is a [prime number](/wiki/Prime_number) that holds a unique place in fundamental [physics](/wiki/Physics). Its reciprocal value is famously close to the fine-structure constant, a dimensionless quantity central to electromagnetic interactions.
+## See also
+- [Fine-structure constant](/wiki/Fine-structure_constant)
+- [Quantum electrodynamics](/wiki/Quantum_electrodynamics)
+- [Fundamental constant](/wiki/Fundamental_constant)
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