Number Gossip

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Unique Properties of 1291

  • 1291 is the smallest prime of the set of five consecutive primes whose sums of digits are a set of five distinct primes (Five consecutive primes are 1291, 1297, 1301, 1303, and 1307 with sums of digits 13, 19, 5, 7, and 11)
  • 1291 is the smallest prime whose nearest neighbors are both sums of consecutive squares

Common Properties of 1291

Deficient
Lucky
Odd
Odious
Prime
Square-free
Twin