144191 has 4 divisors (see below), whose sum is σ = 151800. Its totient is φ = 136584.

The previous prime is 144173. The next prime is 144203. The reversal of 144191 is 191441.

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 144191 - 2¹⁴ = 127807 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144161) 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 in 3 ways as a sum of consecutive naturals, for example, 3776 + ... + 3813.

It is an arithmetic number, because the mean of its divisors is an integer number (37950).

2¹⁴⁴¹⁹¹ is an apocalyptic number.

144191 is a deficient number, since it is larger than the sum of its proper divisors (7609).

144191 is an equidigital number, since it uses as much as digits as its factorization.

144191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7608.

The product of its digits is 144, while the sum is 20.

The square root of 144191 is about 379.7249004213. The cubic root of 144191 is about 52.4379917942.

It can be divided in two parts, 1441 and 91, that multiplied together give a palindrome (131131).

The spelling of 144191 in words is "one hundred forty-four thousand, one hundred ninety-one".