144646344917 has 2 divisors, whose sum is σ = 144646344918. Its totient is φ = 144646344916.

The previous prime is 144646344853. The next prime is 144646344919. The reversal of 144646344917 is 719443646441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85503023281 + 59143321636 = 292409^2 + 243194^2 .

It is a cyclic number.

It is not a de Polignac number, because 144646344917 - 2⁶ = 144646344853 is a prime.

Together with 144646344919, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144646344919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72323172458 + 72323172459.

It is an arithmetic number, because the mean of its divisors is an integer number (72323172459).

Almost surely, 2^144646344917 is an apocalyptic number.

It is an amenable number.

144646344917 is a deficient number, since it is larger than the sum of its proper divisors (1).

144646344917 is an equidigital number, since it uses as much as digits as its factorization.

144646344917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6967296, while the sum is 53.

The spelling of 144646344917 in words is "one hundred forty-four billion, six hundred forty-six million, three hundred forty-four thousand, nine hundred seventeen".