9137993317 has 2 divisors, whose sum is σ = 9137993318. Its totient is φ = 9137993316.

The previous prime is 9137993273. The next prime is 9137993321. The reversal of 9137993317 is 7133997319.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7042734241 + 2095259076 = 83921^2 + 45774^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9137993317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9137993717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4568996658 + 4568996659.

It is an arithmetic number, because the mean of its divisors is an integer number (4568996659).

Almost surely, 2^9137993317 is an apocalyptic number.

It is an amenable number.

9137993317 is a deficient number, since it is larger than the sum of its proper divisors (1).

9137993317 is an equidigital number, since it uses as much as digits as its factorization.

9137993317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 964467, while the sum is 52.

The square root of 9137993317 is about 95592.8518091180. The cubic root of 9137993317 is about 2090.6609721578.

The spelling of 9137993317 in words is "nine billion, one hundred thirty-seven million, nine hundred ninety-three thousand, three hundred seventeen".