- The 19th Sphenic Number is 195.
- The 195th Odd Composite 611.
- The sum of the frequencies of Tta + Seen + Meem in sura 26 is 611.
- 611 = 13 × 47
- The indices of these prime factors are 6 and 15.
- 615th Composite is 748
- The 748th Lonely Prime is 9127
- Sura 9 has 127 verses.
- 195 is the numerical value of the initials كهيعص
- in Surah 19. ك + ه + ي + ع + ص = 90 + 70 + 10 + 5 + 20 = 195 (Kaf + Ha + Ya + Ain + Sad).
- 150th Composite of the type of Index + Prime = Composite is 1281.
- 1281 is the number of digits of 19th Mersenne Prime.
- 150 is the 114th Composite and 114 is the number of Surahs in the Quran.
