999112193 has 2 divisors, whose sum is σ = 999112194. Its totient is φ = 999112192.

The previous prime is 999112189. The next prime is 999112211. The reversal of 999112193 is 391211999.

999112193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 786914704 + 212197489 = 28052^2 + 14567^2 .

It is an emirp because it is prime and its reverse (391211999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999112193 - 2² = 999112189 is a prime.

It is not a weakly prime, because it can be changed into another prime (999112133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499556096 + 499556097.

It is an arithmetic number, because the mean of its divisors is an integer number (499556097).

Almost surely, 2^999112193 is an apocalyptic number.

It is an amenable number.

999112193 is a deficient number, since it is larger than the sum of its proper divisors (1).

999112193 is an equidigital number, since it uses as much as digits as its factorization.

999112193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39366, while the sum is 44.

The square root of 999112193 is about 31608.7360234477. The cubic root of 999112193 is about 999.7039767122.

The spelling of 999112193 in words is "nine hundred ninety-nine million, one hundred twelve thousand, one hundred ninety-three".