191422 has 24 divisors (see below), whose sum is σ = 363888. Its totient is φ = 73920.

The previous prime is 191413. The next prime is 191441. The reversal of 191422 is 224191.

191422 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

Its product of digits (144) is a multiple of the sum of its prime factors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 191422.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1638 + ... + 1750.

It is an arithmetic number, because the mean of its divisors is an integer number (15162).

2¹⁹¹⁴²² is an apocalyptic number.

191422 is a deficient number, since it is larger than the sum of its proper divisors (172466).

191422 is a wasteful number, since it uses less digits than its factorization.

191422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 133 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 191422 is about 437.5179996297. The cubic root of 191422 is about 57.6320343284.

It can be divided in two parts, 1914 and 22, that added together give a square (1936 = 44²).

The spelling of 191422 in words is "one hundred ninety-one thousand, four hundred twenty-two".