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The sum of the first 7*6+9+9 primes. [Nilsson]
The prime number formed from the first four nonzero digits of the sum of the series (1/16 + 1/81 + 1/625 + 1/2401), i.e., the sum of the reciprocals of the fourth powers of the primes. The smallest number that can be expressed as the sum of the k first primes for some k, congruent with 3 modulus 4, and prime. [Rodrigo]
(There are 3 curios for this number that have not yet been approved by an editor.)
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