5185144439 has 2 divisors, whose sum is σ = 5185144440. Its totient is φ = 5185144438.

The previous prime is 5185144427. The next prime is 5185144463. The reversal of 5185144439 is 9344415815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5185144439 - 2¹⁶ = 5185078903 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5185144439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5185144039) 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, 2592572219 + 2592572220.

It is an arithmetic number, because the mean of its divisors is an integer number (2592572220).

Almost surely, 2^5185144439 is an apocalyptic number.

5185144439 is a deficient number, since it is larger than the sum of its proper divisors (1).

5185144439 is an equidigital number, since it uses as much as digits as its factorization.

5185144439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 44.

The square root of 5185144439 is about 72007.9470544745. The cubic root of 5185144439 is about 1730.8268335363.

The spelling of 5185144439 in words is "five billion, one hundred eighty-five million, one hundred forty-four thousand, four hundred thirty-nine".