136217
This number is a prime.
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The middle member P of the smallest Honaker prime
quintuplet {136177, 136207, 136217, 136237, 136247} that is
the arithmetic mean of the other four, i.e., (136177 +
136207 + 136237 + 136247)/4 = 36217. Curiously, P is also
expressible as the sum of two squares: (364^2+61^2). [Bajpai]
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