144285715909 has 2 divisors, whose sum is σ = 144285715910. Its totient is φ = 144285715908.

The previous prime is 144285715859. The next prime is 144285715939. The reversal of 144285715909 is 909517582441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79831677025 + 64454038884 = 282545^2 + 253878^2 .

It is a cyclic number.

It is not a de Polignac number, because 144285715909 - 2⁹ = 144285715397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144285715909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144285715939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72142857954 + 72142857955.

It is an arithmetic number, because the mean of its divisors is an integer number (72142857955).

Almost surely, 2^144285715909 is an apocalyptic number.

It is an amenable number.

144285715909 is a deficient number, since it is larger than the sum of its proper divisors (1).

144285715909 is an equidigital number, since it uses as much as digits as its factorization.

144285715909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 55.

The spelling of 144285715909 in words is "one hundred forty-four billion, two hundred eighty-five million, seven hundred fifteen thousand, nine hundred nine".