144865597 has 2 divisors, whose sum is σ = 144865598. Its totient is φ = 144865596.

The previous prime is 144865579. The next prime is 144865603. The reversal of 144865597 is 795568441.

It is a happy number.

144865597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (144865579) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101384761 + 43480836 = 10069^2 + 6594^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144865597 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144865597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144865547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72432798 + 72432799.

It is an arithmetic number, because the mean of its divisors is an integer number (72432799).

Almost surely, 2^144865597 is an apocalyptic number.

It is an amenable number.

144865597 is a deficient number, since it is larger than the sum of its proper divisors (1).

144865597 is an equidigital number, since it uses as much as digits as its factorization.

144865597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 49.

The square root of 144865597 is about 12036.0125041477. The cubic root of 144865597 is about 525.1964156980.

The spelling of 144865597 in words is "one hundred forty-four million, eight hundred sixty-five thousand, five hundred ninety-seven".