- The 19th Super Prime is 331.
- The 331st revealed verse is the last in the compiled Quran, 114:6.
- The 331st Good Prime is 30803.
- 30803 is the 548th Happy Prime.
- 548th Additive Prime is 9127.
- 548 is the 446th Composite.
- 446 is the 359th Composite.
- 359 is the 19th Emirp.
- Its Emirp is 953 which is the index of Composite 1143.
- 1143 = 9 × 127.
- 331st Happy Prime is 16741.
- 16741 is the 961st Gaussian Prime.
- 961 is the 798th Composite.
- 798 is the sum of the frequencies of ص + ع + ي + ه + ك (Kaf + Ha + Ya + Ain + Sad) in Surah 19.
