1283
This number is a prime.
If A = 37, B = 59, C = 67, ..., Z = 463, using the irregular prime alphabet, then 'PRIME' is an irregular prime. [Homewood]
1283 is the smallest number m such that 1000! + m is prime. [Firoozbakht]
The smallest emirp displayed on a calculator that when reflected horizontally shows another emirp: 1583. [Beedassy]
A prime minimal row sum in Honaker's Triangle Problem. Can you find a larger example?
(There are 3 curios for this number that have not yet been approved by an editor.)
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