999112259 has 2 divisors, whose sum is σ = 999112260. Its totient is φ = 999112258.

The previous prime is 999112211. The next prime is 999112339. The reversal of 999112259 is 952211999.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999112259 is a prime.

It is not a weakly prime, because it can be changed into another prime (999172259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499556129 + 499556130.

It is an arithmetic number, because the mean of its divisors is an integer number (499556130).

Almost surely, 2^999112259 is an apocalyptic number.

999112259 is a deficient number, since it is larger than the sum of its proper divisors (1).

999112259 is an equidigital number, since it uses as much as digits as its factorization.

999112259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131220, while the sum is 47.

The square root of 999112259 is about 31608.7370674629. The cubic root of 999112259 is about 999.7039987252.

The spelling of 999112259 in words is "nine hundred ninety-nine million, one hundred twelve thousand, two hundred fifty-nine".