144140813 has 2 divisors, whose sum is σ = 144140814. Its totient is φ = 144140812.

The previous prime is 144140791. The next prime is 144140819. The reversal of 144140813 is 318041441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123365449 + 20775364 = 11107^2 + 4558^2 .

It is an emirp because it is prime and its reverse (318041441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144140813 - 2⁶ = 144140749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144140819) 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, 72070406 + 72070407.

It is an arithmetic number, because the mean of its divisors is an integer number (72070407).

Almost surely, 2^144140813 is an apocalyptic number.

It is an amenable number.

144140813 is a deficient number, since it is larger than the sum of its proper divisors (1).

144140813 is an equidigital number, since it uses as much as digits as its factorization.

144140813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 144140813 is about 12005.8657746953. The cubic root of 144140813 is about 524.3190724687.

The spelling of 144140813 in words is "one hundred forty-four million, one hundred forty thousand, eight hundred thirteen".