144443191 has 4 divisors (see below), whose sum is σ = 144531712. Its totient is φ = 144354672.

The previous prime is 144443147. The next prime is 144443207. The reversal of 144443191 is 191344441.

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 144443191 - 2¹³ = 144434999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144441191) 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 3 ways as a sum of consecutive naturals, for example, 41766 + ... + 45091.

It is an arithmetic number, because the mean of its divisors is an integer number (36132928).

Almost surely, 2^144443191 is an apocalyptic number.

144443191 is a deficient number, since it is larger than the sum of its proper divisors (88521).

144443191 is an equidigital number, since it uses as much as digits as its factorization.

144443191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88520.

The product of its digits is 6912, while the sum is 31.

The square root of 144443191 is about 12018.4521049926. The cubic root of 144443191 is about 524.6854545154.

The spelling of 144443191 in words is "one hundred forty-four million, four hundred forty-three thousand, one hundred ninety-one".