144390243965 has 16 divisors (see below), whose sum is σ = 189027336960. Its totient is φ = 105006985920.

The previous prime is 144390243961. The next prime is 144390243967. The reversal of 144390243965 is 569342093441.

144390243965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144390243965 - 2² = 144390243961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144390243961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2713031 + ... + 2765739.

It is an arithmetic number, because the mean of its divisors is an integer number (11814208560).

Almost surely, 2^144390243965 is an apocalyptic number.

It is an amenable number.

144390243965 is a deficient number, since it is larger than the sum of its proper divisors (44637092995).

144390243965 is a wasteful number, since it uses less digits than its factorization.

144390243965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102532.

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 144390243965 in words is "one hundred forty-four billion, three hundred ninety million, two hundred forty-three thousand, nine hundred sixty-five".