144518117 has 2 divisors, whose sum is σ = 144518118. Its totient is φ = 144518116.

The previous prime is 144518093. The next prime is 144518119. The reversal of 144518117 is 711815441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105966436 + 38551681 = 10294^2 + 6209^2 .

It is an emirp because it is prime and its reverse (711815441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144518117 - 2⁶ = 144518053 is a prime.

It is a super-2 number, since 2×144518117² = 41770972282451378, which contains 22 as substring.

Together with 144518119, 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 (144518119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72259058 + 72259059.

It is an arithmetic number, because the mean of its divisors is an integer number (72259059).

Almost surely, 2^144518117 is an apocalyptic number.

It is an amenable number.

144518117 is a deficient number, since it is larger than the sum of its proper divisors (1).

144518117 is an equidigital number, since it uses as much as digits as its factorization.

144518117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4480, while the sum is 32.

The square root of 144518117 is about 12021.5688244089. The cubic root of 144518117 is about 524.7761609645.

The spelling of 144518117 in words is "one hundred forty-four million, five hundred eighteen thousand, one hundred seventeen".