1674437

Properties

Appears in sequences

• Primes of form 4*p^2 + 1, p prime.at n=18A052292
• Primes of form n^2 + mu(n), where mu is A008683.at n=27A062459
• Primes p such that sigma(p-1)+sigma(p+1) is prime.at n=24A067464
• Divisorial primes: primes p of the form p = 1 + Product_{d|k} d for some k.at n=20A258455
• Divisorial primes p of the form p = 1 + k^2 where k^2 = Product_{d|k} d= A007955(k) for some k.at n=18A258896
• Prime numbersat n=126346