1109179009 has 8 divisors (see below), whose sum is σ = 1125377792. Its totient is φ = 1093007520.

The previous prime is 1109178997. The next prime is 1109179021. The reversal of 1109179009 is 9009719011.

It is an interprime number because it is at equal distance from previous prime (1109178997) and next prime (1109179021).

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-1109179009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1109179069) 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, 83692 + ... + 96034.

It is an arithmetic number, because the mean of its divisors is an integer number (140672224).

Almost surely, 2^1109179009 is an apocalyptic number.

It is an amenable number.

1109179009 is a deficient number, since it is larger than the sum of its proper divisors (16198783).

1109179009 is a wasteful number, since it uses less digits than its factorization.

1109179009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13647.

The product of its (nonzero) digits is 5103, while the sum is 37.

The square root of 1109179009 is about 33304.3391917630. The cubic root of 1109179009 is about 1035.1434712856.

It can be divided in two parts, 11091 and 79009, that added together give a triangular number (90100 = T₄₂₄).

The spelling of 1109179009 in words is "one billion, one hundred nine million, one hundred seventy-nine thousand, nine".