234191 has 2 divisors, whose sum is σ = 234192. Its totient is φ = 234190.

The previous prime is 234187. The next prime is 234193. The reversal of 234191 is 191432.

234191 is nontrivially palindromic in base 12.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 234191 - 2² = 234187 is a prime.

Together with 234193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117095 + 117096.

It is an arithmetic number, because the mean of its divisors is an integer number (117096).

2²³⁴¹⁹¹ is an apocalyptic number.

234191 is a deficient number, since it is larger than the sum of its proper divisors (1).

234191 is an equidigital number, since it uses as much as digits as its factorization.

234191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 20.

The square root of 234191 is about 483.9328465810. The cubic root of 234191 is about 61.6391631268.

The spelling of 234191 in words is "two hundred thirty-four thousand, one hundred ninety-one".