5109431513 has 2 divisors, whose sum is σ = 5109431514. Its totient is φ = 5109431512.

The previous prime is 5109431507. The next prime is 5109431539. The reversal of 5109431513 is 3151349015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3054441289 + 2054990224 = 55267^2 + 45332^2 .

It is a cyclic number.

It is not a de Polignac number, because 5109431513 - 2¹² = 5109427417 is a prime.

It is a super-2 number, since 2×5109431513² = 52212580772074938338, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5109431513.

It is not a weakly prime, because it can be changed into another prime (5109431573) 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, 2554715756 + 2554715757.

It is an arithmetic number, because the mean of its divisors is an integer number (2554715757).

Almost surely, 2^5109431513 is an apocalyptic number.

It is an amenable number.

5109431513 is a deficient number, since it is larger than the sum of its proper divisors (1).

5109431513 is an equidigital number, since it uses as much as digits as its factorization.

5109431513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 5109431513 is about 71480.2875833611. The cubic root of 5109431513 is about 1722.3610437259.

The spelling of 5109431513 in words is "five billion, one hundred nine million, four hundred thirty-one thousand, five hundred thirteen".