144744917 has 2 divisors, whose sum is σ = 144744918. Its totient is φ = 144744916.

The previous prime is 144744893. The next prime is 144744947. The reversal of 144744917 is 719447441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125305636 + 19439281 = 11194^2 + 4409^2 .

It is an emirp because it is prime and its reverse (719447441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144744917 - 2¹² = 144740821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144744947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72372458 + 72372459.

It is an arithmetic number, because the mean of its divisors is an integer number (72372459).

Almost surely, 2^144744917 is an apocalyptic number.

It is an amenable number.

144744917 is a deficient number, since it is larger than the sum of its proper divisors (1).

144744917 is an equidigital number, since it uses as much as digits as its factorization.

144744917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 41.

The square root of 144744917 is about 12030.9981713904. The cubic root of 144744917 is about 525.0505372363.

It can be divided in two parts, 14474 and 4917, that added together give a palindrome (19391).

The spelling of 144744917 in words is "one hundred forty-four million, seven hundred forty-four thousand, nine hundred seventeen".