144145139 has 2 divisors, whose sum is σ = 144145140. Its totient is φ = 144145138.

The previous prime is 144145129. The next prime is 144145147. The reversal of 144145139 is 931541441.

It is a strong prime.

It is an emirp because it is prime and its reverse (931541441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144145139 - 2⁸ = 144144883 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (144145129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72072569 + 72072570.

It is an arithmetic number, because the mean of its divisors is an integer number (72072570).

Almost surely, 2^144145139 is an apocalyptic number.

144145139 is a deficient number, since it is larger than the sum of its proper divisors (1).

144145139 is an equidigital number, since it uses as much as digits as its factorization.

144145139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 144145139 is about 12006.0459352778. The cubic root of 144145139 is about 524.3243177600.

The spelling of 144145139 in words is "one hundred forty-four million, one hundred forty-five thousand, one hundred thirty-nine".