191230 has 16 divisors (see below), whose sum is σ = 370944. Its totient is φ = 70560.

The previous prime is 191227. The next prime is 191231. The reversal of 191230 is 32191.

191230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606 + ... + 865.

It is an arithmetic number, because the mean of its divisors is an integer number (23184).

2¹⁹¹²³⁰ is an apocalyptic number.

191230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

191230 is a deficient number, since it is larger than the sum of its proper divisors (179714).

191230 is a wasteful number, since it uses less digits than its factorization.

191230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491.

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

The square root of 191230 is about 437.2985250375. The cubic root of 191230 is about 57.6127591976.

The spelling of 191230 in words is "one hundred ninety-one thousand, two hundred thirty".