144471617 has 2 divisors, whose sum is σ = 144471618. Its totient is φ = 144471616.

The previous prime is 144471601. The next prime is 144471637. The reversal of 144471617 is 716174441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143976001 + 495616 = 11999^2 + 704^2 .

It is an emirp because it is prime and its reverse (716174441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144471617 - 2⁴ = 144471601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144471637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72235808 + 72235809.

It is an arithmetic number, because the mean of its divisors is an integer number (72235809).

Almost surely, 2^144471617 is an apocalyptic number.

It is an amenable number.

144471617 is a deficient number, since it is larger than the sum of its proper divisors (1).

144471617 is an equidigital number, since it uses as much as digits as its factorization.

144471617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18816, while the sum is 35.

The square root of 144471617 is about 12019.6346450298. The cubic root of 144471617 is about 524.7198711151.

The spelling of 144471617 in words is "one hundred forty-four million, four hundred seventy-one thousand, six hundred seventeen".