144917 has 2 divisors, whose sum is σ = 144918. Its totient is φ = 144916.

The previous prime is 144899. The next prime is 144931. The reversal of 144917 is 719441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139876 + 5041 = 374^2 + 71^2 .

It is an emirp because it is prime and its reverse (719441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144917 is a prime.

It is a Chen prime.

It is a nialpdrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144917.

It is not a weakly prime, because it can be changed into another prime (144967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72458 + 72459.

It is an arithmetic number, because the mean of its divisors is an integer number (72459).

2¹⁴⁴⁹¹⁷ is an apocalyptic number.

It is an amenable number.

144917 is a deficient number, since it is larger than the sum of its proper divisors (1).

144917 is an equidigital number, since it uses as much as digits as its factorization.

144917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 26.

The square root of 144917 is about 380.6796553534. The cubic root of 144917 is about 52.5258527245.

The spelling of 144917 in words is "one hundred forty-four thousand, nine hundred seventeen".