191159 has 4 divisors (see below), whose sum is σ = 201240. Its totient is φ = 181080.

The previous prime is 191143. The next prime is 191161. The reversal of 191159 is 951191.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 191159 - 2⁴ = 191143 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 (191119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5012 + ... + 5049.

It is an arithmetic number, because the mean of its divisors is an integer number (50310).

2¹⁹¹¹⁵⁹ is an apocalyptic number.

191159 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

191159 is a deficient number, since it is larger than the sum of its proper divisors (10081).

191159 is a wasteful number, since it uses less digits than its factorization.

191159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10080.

The product of its digits is 405, while the sum is 26.

The square root of 191159 is about 437.2173372592. The cubic root of 191159 is about 57.6056281473.

The spelling of 191159 in words is "one hundred ninety-one thousand, one hundred fifty-nine".