- 4253 is the exponent of the 19th Mersenne Prime. Chapter 42 has 53 verses. 4253 is the 249th Non-Chen Prime. The 195th composite is 249
- The 150th composite is 195 and 195 is the numerical value of K (20) + Ha (5) + Y (10) + Ayn (70) + Saad (90) in sura 19.
- The 19th quad-prime is 150.
- The 114th composite is 150. 114 is thenumber of chapters in the Quran.
- The 249th Lonely Gaussian Prime is 5683 which is the 748th Prime.
- The 748th Lonely Prime is 9127.
- 249 = 3 × 83
- 383rd composite is 475 = 5 × 5 × 19
- 5519th composite is 6346 which is the total number of verses in the Quran.
