5115243131 has 4 divisors (see below), whose sum is σ = 5130422232. Its totient is φ = 5100064032.

The previous prime is 5115243103. The next prime is 5115243139. The reversal of 5115243131 is 1313425115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5115243131 is a prime.

It is a super-2 number, since 2×5115243131² = 52331424578485366322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5115243131.

It is not an unprimeable number, because it can be changed into a prime (5115243139) 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 in 3 ways as a sum of consecutive naturals, for example, 7589045 + ... + 7589718.

It is an arithmetic number, because the mean of its divisors is an integer number (1282605558).

Almost surely, 2^5115243131 is an apocalyptic number.

5115243131 is a deficient number, since it is larger than the sum of its proper divisors (15179101).

5115243131 is a wasteful number, since it uses less digits than its factorization.

5115243131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15179100.

The product of its digits is 1800, while the sum is 26.

The square root of 5115243131 is about 71520.9279232310. The cubic root of 5115243131 is about 1723.0138176992.

Adding to 5115243131 its reverse (1313425115), we get a palindrome (6428668246).

The spelling of 5115243131 in words is "five billion, one hundred fifteen million, two hundred forty-three thousand, one hundred thirty-one".