5115311471 has 2 divisors, whose sum is σ = 5115311472. Its totient is φ = 5115311470.

The previous prime is 5115311447. The next prime is 5115311473. The reversal of 5115311471 is 1741135115.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5115311471 is a prime.

It is a super-3 number, since 3×5115311471³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

Together with 5115311473, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5115311473) 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, 2557655735 + 2557655736.

It is an arithmetic number, because the mean of its divisors is an integer number (2557655736).

Almost surely, 2^5115311471 is an apocalyptic number.

5115311471 is a deficient number, since it is larger than the sum of its proper divisors (1).

5115311471 is an equidigital number, since it uses as much as digits as its factorization.

5115311471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2100, while the sum is 29.

The square root of 5115311471 is about 71521.4056838930. The cubic root of 5115311471 is about 1723.0214908594.

Adding to 5115311471 its reverse (1741135115), we get a palindrome (6856446586).

The spelling of 5115311471 in words is "five billion, one hundred fifteen million, three hundred eleven thousand, four hundred seventy-one".