3587237

Properties

Appears in sequences

• Primes of form 4*p^2 + 1, p prime.at n=26A052292
• Primes of the form 81n^2 - 90n + 26.at n=21A144571
• a(n) is the smallest prime p where |d(p-1) - d(p+1)| = n. (d(m) = the number of divisors of m.)at n=39A145338
• Divisorial primes: primes p of the form p = 1 + Product_{d|k} d for some k.at n=28A258455
• Divisorial primes p of the form p = 1 + k^2 where k^2 = Product_{d|k} d= A007955(k) for some k.at n=26A258896
• Prime numbersat n=255880