A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 1136016 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 21 23 24 28 36 42 46 48 49 56 63 69 72 84 92 98 112 126 138 144 147 161 168 184 196 207 252 276 294 322 336 343 368 392 414 441 483 504 552 588 644 686 784 828 882 966 1,008 1,029 1,104 1,127 1,176 1,288 1,372 1,449 1,656 1,764 1,932 2,058 2,254 2,352 2,576 2,744 2,898 3,087 3,312 3,381 3,528 3,864 4,116 4,508 5,488 5,796 6,174 6,762 7,056 7,728 7,889 8,232 9,016 10,143 11,592 12,348 13,524 15,778 16,464 18,032 20,286 23,184 23,667 24,696 27,048 31,556 40,572 47,334 49,392 54,096 63,112 71,001 81,144 94,668 126,224 142,002 162,288 189,336 284,004 378,672 568,008 and 1,136,016, with no remainder.
Since 1,136,016 cannot be divided by just 1 and 1,136,016, it is not a prime number.