3115813543 has 2 divisors, whose sum is σ = 3115813544. Its totient is φ = 3115813542.

The previous prime is 3115813531. The next prime is 3115813633. The reversal of 3115813543 is 3453185113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3115813543 - 2²⁹ = 2578942631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3115813499 and 3115813508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3115813643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1557906771 + 1557906772.

It is an arithmetic number, because the mean of its divisors is an integer number (1557906772).

Almost surely, 2^3115813543 is an apocalyptic number.

3115813543 is a deficient number, since it is larger than the sum of its proper divisors (1).

3115813543 is an equidigital number, since it uses as much as digits as its factorization.

3115813543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 34.

The square root of 3115813543 is about 55819.4727939990. The cubic root of 3115813543 is about 1460.5748569764.

Adding to 3115813543 its reverse (3453185113), we get a palindrome (6568998656).

The spelling of 3115813543 in words is "three billion, one hundred fifteen million, eight hundred thirteen thousand, five hundred forty-three".