191383159 has 16 divisors (see below), whose sum is σ = 214557984. Its totient is φ = 170639040.

The previous prime is 191383141. The next prime is 191383189. The reversal of 191383159 is 951383191.

It is not a de Polignac number, because 191383159 - 2⁹ = 191382647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191383139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69187 + ... + 71899.

It is an arithmetic number, because the mean of its divisors is an integer number (13409874).

Almost surely, 2^191383159 is an apocalyptic number.

191383159 is a deficient number, since it is larger than the sum of its proper divisors (23174825).

191383159 is an equidigital number, since it uses as much as digits as its factorization.

191383159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799 (or 2777 counting only the distinct ones).

The product of its digits is 29160, while the sum is 40.

The square root of 191383159 is about 13834.1302220270. The cubic root of 191383159 is about 576.2813606998.

The spelling of 191383159 in words is "one hundred ninety-one million, three hundred eighty-three thousand, one hundred fifty-nine".