9085132817 has 2 divisors, whose sum is σ = 9085132818. Its totient is φ = 9085132816.

The previous prime is 9085132757. The next prime is 9085132841. The reversal of 9085132817 is 7182315809.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5849343361 + 3235789456 = 76481^2 + 56884^2 .

It is an emirp because it is prime and its reverse (7182315809) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9085132817 - 2²⁸ = 8816697361 is a prime.

It is not a weakly prime, because it can be changed into another prime (9085132717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4542566408 + 4542566409.

It is an arithmetic number, because the mean of its divisors is an integer number (4542566409).

Almost surely, 2^9085132817 is an apocalyptic number.

It is an amenable number.

9085132817 is a deficient number, since it is larger than the sum of its proper divisors (1).

9085132817 is an equidigital number, since it uses as much as digits as its factorization.

9085132817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 9085132817 is about 95315.9630754471. The cubic root of 9085132817 is about 2086.6218954755.

The spelling of 9085132817 in words is "nine billion, eighty-five million, one hundred thirty-two thousand, eight hundred seventeen".