999292125317 has 2 divisors, whose sum is σ = 999292125318. Its totient is φ = 999292125316.

The previous prime is 999292125313. The next prime is 999292125329. The reversal of 999292125317 is 713521292999.

It is a Cunningham number, because it is equal to 999646²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 999292125316 + 1 = 999646^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 999292125317 - 2² = 999292125313 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999292125313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499646062658 + 499646062659.

It is an arithmetic number, because the mean of its divisors is an integer number (499646062659).

Almost surely, 2^999292125317 is an apocalyptic number.

It is an amenable number.

999292125317 is a deficient number, since it is larger than the sum of its proper divisors (1).

999292125317 is an equidigital number, since it uses as much as digits as its factorization.

999292125317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5511240, while the sum is 59.

The spelling of 999292125317 in words is "nine hundred ninety-nine billion, two hundred ninety-two million, one hundred twenty-five thousand, three hundred seventeen".