144808913 has 2 divisors, whose sum is σ = 144808914. Its totient is φ = 144808912.

The previous prime is 144808903. The next prime is 144808933. The reversal of 144808913 is 319808441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101143249 + 43665664 = 10057^2 + 6608^2 .

It is an emirp because it is prime and its reverse (319808441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144808913 - 2¹² = 144804817 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (144808903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72404456 + 72404457.

It is an arithmetic number, because the mean of its divisors is an integer number (72404457).

Almost surely, 2^144808913 is an apocalyptic number.

It is an amenable number.

144808913 is a deficient number, since it is larger than the sum of its proper divisors (1).

144808913 is an equidigital number, since it uses as much as digits as its factorization.

144808913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 144808913 is about 12033.6575071754. The cubic root of 144808913 is about 525.1279059483.

The spelling of 144808913 in words is "one hundred forty-four million, eight hundred eight thousand, nine hundred thirteen".