2237
This number is a prime.
The smallest four-digit prime whose digits are all primes. [Muller]
The next prime year in which Pluto is closer to the Sun
than Neptune.
The smallest prime whose 3rd power starts with 3 identical digits: 2237^3 = 11194326053. [Loungrides]
(There is one curio for this number that has not yet been approved by an editor.)
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