1000000109 has 4 divisors (see below), whose sum is σ = 1000070016. Its totient is φ = 999930204.

The previous prime is 1000000103. The next prime is 1000000123. The reversal of 1000000109 is 9010000001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9010000001 = 45329 ⋅198769.

It is a cyclic number.

It is not a de Polignac number, because 1000000109 - 2⁴ = 1000000093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1000000109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000000103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4859 + ... + 44984.

It is an arithmetic number, because the mean of its divisors is an integer number (250017504).

Almost surely, 2^1000000109 is an apocalyptic number.

It is an amenable number.

1000000109 is a deficient number, since it is larger than the sum of its proper divisors (69907).

1000000109 is an equidigital number, since it uses as much as digits as its factorization.

1000000109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69906.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 1000000109 is about 31622.7783251251. The cubic root of 1000000109 is about 1000.0000363333. Note that the first 4 decimals are identical.

The spelling of 1000000109 in words is "one billion, one hundred nine", and thus it is an aban number.