144039578909 has 2 divisors, whose sum is σ = 144039578910. Its totient is φ = 144039578908.

The previous prime is 144039578869. The next prime is 144039578939. The reversal of 144039578909 is 909875930441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133917206809 + 10122372100 = 365947^2 + 100610^2 .

It is an emirp because it is prime and its reverse (909875930441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144039578909 - 2⁸ = 144039578653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144039578939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72019789454 + 72019789455.

It is an arithmetic number, because the mean of its divisors is an integer number (72019789455).

Almost surely, 2^144039578909 is an apocalyptic number.

It is an amenable number.

144039578909 is a deficient number, since it is larger than the sum of its proper divisors (1).

144039578909 is an equidigital number, since it uses as much as digits as its factorization.

144039578909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 144039578909 in words is "one hundred forty-four billion, thirty-nine million, five hundred seventy-eight thousand, nine hundred nine".