## John von Neumann was born on this day 113 years ago.

### Properties of the number 9125223:

9125223 = 3 × 3041741 is semiprime and squarefree.9125223 has 2 distinct prime factors, 4 divisors, 11 antidivisors and 6083480 totatives.

Reversing the decimal digits of 9125223 results in an emirpimes.

9125223 = 4562612

^{2}- 4562611

^{2}= 1520872

^{2}- 1520869

^{2}is the difference of 2 nonnegative squares in 2 ways.

9125223 is the difference of 2 positive pentagonal numbers in 1 way.

9125223 is not the sum of 3 positive squares.

9125223

^{2}= 2293980

^{2}+ 8832177

^{2}is the sum of 2 positive squares in 1 way.

9125223

^{2}is the sum of 3 positive squares.

9125223 is a divisor of 173

^{23398}- 1.

9125223 = '91' + '25223' is the concatenation of 2 semiprime numbers.

9125223 is an emirpimes in (at least) the following bases: 9, 10, 14, 31, 39, 40, 41, 49, 51, 52, 56, 57, 61, 71, 78, 83, 87, and 92.

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