999045017 has 2 divisors, whose sum is σ = 999045018. Its totient is φ = 999045016.

The previous prime is 999044999. The next prime is 999045037. The reversal of 999045017 is 710540999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 996286096 + 2758921 = 31564^2 + 1661^2 .

It is a cyclic number.

It is not a de Polignac number, because 999045017 - 2¹⁶ = 998979481 is a prime.

It is not a weakly prime, because it can be changed into another prime (999045037) 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, 499522508 + 499522509.

It is an arithmetic number, because the mean of its divisors is an integer number (499522509).

Almost surely, 2^999045017 is an apocalyptic number.

It is an amenable number.

999045017 is a deficient number, since it is larger than the sum of its proper divisors (1).

999045017 is an equidigital number, since it uses as much as digits as its factorization.

999045017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 999045017 is about 31607.6733879607. The cubic root of 999045017 is about 999.6815709470.

The spelling of 999045017 in words is "nine hundred ninety-nine million, forty-five thousand, seventeen".