589

This number is a composite.

+ The smallest 3-digit brilliant number, (589 = 19 × 31), whose the prime factors concatenated in order and reverse order create primes, i.e., 1931, 3119. [Loungrides]

+ The smallest Golden semiprime that can be expressed as the sum of 7 consecutive Fibonacci numbers, i.e., (13 + 21 + 34 + 55 + 89 + 144 + 233). [Bajpai]

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