1109146187 has 8 divisors (see below), whose sum is σ = 1115615232. Its totient is φ = 1102689000.

The previous prime is 1109146183. The next prime is 1109146193. The reversal of 1109146187 is 7816419011.

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

It is a cyclic number.

It is not a de Polignac number, because 1109146187 - 2² = 1109146183 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 1109146187.

It is not an unprimeable number, because it can be changed into a prime (1109146183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240578 + ... + 245144.

It is an arithmetic number, because the mean of its divisors is an integer number (139451904).

Almost surely, 2^1109146187 is an apocalyptic number.

1109146187 is a deficient number, since it is larger than the sum of its proper divisors (6469045).

1109146187 is a wasteful number, since it uses less digits than its factorization.

1109146187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5929.

The product of its (nonzero) digits is 12096, while the sum is 38.

The square root of 1109146187 is about 33303.8464295042. The cubic root of 1109146187 is about 1035.1332607864.

The spelling of 1109146187 in words is "one billion, one hundred nine million, one hundred forty-six thousand, one hundred eighty-seven".