230191 has 4 divisors (see below), whose sum is σ = 247912. Its totient is φ = 212472.

The previous prime is 230189. The next prime is 230203. The reversal of 230191 is 191032.

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

It is not a de Polignac number, because 230191 - 2¹ = 230189 is a prime.

It is a Duffinian number.

230191 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230101) 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, 8841 + ... + 8866.

It is an arithmetic number, because the mean of its divisors is an integer number (61978).

2²³⁰¹⁹¹ is an apocalyptic number.

230191 is a deficient number, since it is larger than the sum of its proper divisors (17721).

230191 is a wasteful number, since it uses less digits than its factorization.

230191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17720.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 230191 is about 479.7822422725. The cubic root of 230191 is about 61.2862121004.

The spelling of 230191 in words is "two hundred thirty thousand, one hundred ninety-one".