144442231210405 has 4 divisors (see below), whose sum is σ = 173330677452492. Its totient is φ = 115553784968320.

The previous prime is 144442231210357. The next prime is 144442231210439. The reversal of 144442231210405 is 504012132244441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80597768595876 + 63844462614529 = 8977626^2 + 7990273^2 .

It is not a de Polignac number, because 144442231210405 - 2¹⁵ = 144442231177637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14444223121036 + ... + 14444223121045.

It is an arithmetic number, because the mean of its divisors is an integer number (43332669363123).

Almost surely, 2^{144442231210405} is an apocalyptic number.

It is an amenable number.

144442231210405 is a deficient number, since it is larger than the sum of its proper divisors (28888446242087).

144442231210405 is an equidigital number, since it uses as much as digits as its factorization.

144442231210405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28888446242086.

The product of its (nonzero) digits is 122880, while the sum is 37.

Adding to 144442231210405 its reverse (504012132244441), we get a palindrome (648454363454846).

The spelling of 144442231210405 in words is "one hundred forty-four trillion, four hundred forty-two billion, two hundred thirty-one million, two hundred ten thousand, four hundred five".