5131540647 has 16 divisors (see below), whose sum is σ = 7608922080. Its totient is φ = 3418039296.

The previous prime is 5131540643. The next prime is 5131540651. The reversal of 5131540647 is 7460451315.

5131540647 is a `hidden beast` number, since 5 + 1 + 3 + 1 + 5 + 4 + 0 + 647 = 666.

It is an interprime number because it is at equal distance from previous prime (5131540643) and next prime (5131540651).

It is not a de Polignac number, because 5131540647 - 2² = 5131540643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131540643) 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 15 ways as a sum of consecutive naturals, for example, 51288 + ... + 113549.

It is an arithmetic number, because the mean of its divisors is an integer number (475557630).

Almost surely, 2^5131540647 is an apocalyptic number.

5131540647 is a deficient number, since it is larger than the sum of its proper divisors (2477381433).

5131540647 is a wasteful number, since it uses less digits than its factorization.

5131540647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165999 (or 165993 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 5131540647 is about 71634.7726107929. The cubic root of 5131540647 is about 1724.8417578849.

The spelling of 5131540647 in words is "five billion, one hundred thirty-one million, five hundred forty thousand, six hundred forty-seven".