144544413565 has 4 divisors (see below), whose sum is σ = 173453296284. Its totient is φ = 115635530848.

The previous prime is 144544413553. The next prime is 144544413619. The reversal of 144544413565 is 565314445441.

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 63138623076 + 81405790489 = 251274^2 + 285317^2 .

It is a cyclic number.

It is not a de Polignac number, because 144544413565 - 2¹⁹ = 144543889277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14454441352 + ... + 14454441361.

It is an arithmetic number, because the mean of its divisors is an integer number (43363324071).

Almost surely, 2^144544413565 is an apocalyptic number.

It is an amenable number.

144544413565 is a deficient number, since it is larger than the sum of its proper divisors (28908882719).

144544413565 is an equidigital number, since it uses as much as digits as its factorization.

144544413565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28908882718.

The product of its digits is 2304000, while the sum is 46.

The spelling of 144544413565 in words is "one hundred forty-four billion, five hundred forty-four million, four hundred thirteen thousand, five hundred sixty-five".