137605

Appears in sequences

• Numbers k that are the hypotenuse of exactly 40 distinct integer-sided right triangles, i.e., k^2 can be written as a sum of two squares in 40 ways.at n=30A097282
• Numbers n that are the product of four distinct odd primes and x^2 + y^2 = n has integer solutions.at n=21A264499
• Numbers equal to the determinant of a circulant matrix based on the base-9 digits of n.at n=23A303369