9717504131 has 2 divisors, whose sum is σ = 9717504132. Its totient is φ = 9717504130.

The previous prime is 9717504127. The next prime is 9717504143. The reversal of 9717504131 is 1314057179.

It is a weak prime.

It is an emirp because it is prime and its reverse (1314057179) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9717504131 - 2² = 9717504127 is a prime.

It is a super-2 number, since 2×9717504131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9717504101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4858752065 + 4858752066.

It is an arithmetic number, because the mean of its divisors is an integer number (4858752066).

Almost surely, 2^9717504131 is an apocalyptic number.

9717504131 is a deficient number, since it is larger than the sum of its proper divisors (1).

9717504131 is an equidigital number, since it uses as much as digits as its factorization.

9717504131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 38.

The square root of 9717504131 is about 98577.4017257505. The cubic root of 9717504131 is about 2133.9533016304.

The spelling of 9717504131 in words is "nine billion, seven hundred seventeen million, five hundred four thousand, one hundred thirty-one".