1000109999 has 8 divisors (see below), whose sum is σ = 1155826080. Its totient is φ = 847604736.

The previous prime is 1000109993. The next prime is 1000110019. The reversal of 1000109999 is 9999010001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000109999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000109993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802034 + ... + 803279.

It is an arithmetic number, because the mean of its divisors is an integer number (144478260).

Almost surely, 2^1000109999 is an apocalyptic number.

1000109999 is a deficient number, since it is larger than the sum of its proper divisors (155716081).

1000109999 is an equidigital number, since it uses as much as digits as its factorization.

1000109999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605409.

The product of its (nonzero) digits is 6561, while the sum is 38.

The square root of 1000109999 is about 31624.5157907595. The cubic root of 1000109999 is about 1000.0366649890.

The spelling of 1000109999 in words is "one billion, one hundred nine thousand, nine hundred ninety-nine".