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(another Prime Pages' Curiosity)
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+ The smallest prime number whose individual digits are composite perfect squares. [Thoms]

+ The smallest prime number that can be constructed by two concatenated perfect prime squares (22 and 72). [Wagler]

+ 449 is the 87th prime. Note that 42 + 42 + 92 = 82 + 72. [Punches]

+ The smallest prime whose digits are all semiprimes. [Silva]

+ Smallest zeroless prime whose every power contain the digit zero in it. [Gupta]

(There are 8 curios for this number that have not yet been approved by an editor.)




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