1109672109 has 32 divisors (see below), whose sum is σ = 2023338240. Its totient is φ = 585320256.

The previous prime is 1109672107. The next prime is 1109672117. The reversal of 1109672109 is 9012769011.

It is not a de Polignac number, because 1109672109 - 2¹ = 1109672107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109672107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223362 + ... + 228275.

It is an arithmetic number, because the mean of its divisors is an integer number (63229320).

Almost surely, 2^1109672109 is an apocalyptic number.

It is an amenable number.

1109672109 is a deficient number, since it is larger than the sum of its proper divisors (913666131).

1109672109 is a wasteful number, since it uses less digits than its factorization.

1109672109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451666 (or 451660 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The square root of 1109672109 is about 33311.7413084336. The cubic root of 1109672109 is about 1035.2968440718.

The spelling of 1109672109 in words is "one billion, one hundred nine million, six hundred seventy-two thousand, one hundred nine".