1109158739 has 8 divisors (see below), whose sum is σ = 1246412832. Its totient is φ = 979323840.

The previous prime is 1109158697. The next prime is 1109158747. The reversal of 1109158739 is 9378519011.

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 1109158739 - 2²⁴ = 1092381523 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 1109158739.

It is not an unprimeable number, because it can be changed into a prime (1109158789) 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, 1854482 + ... + 1855079.

It is an arithmetic number, because the mean of its divisors is an integer number (155801604).

Almost surely, 2^1109158739 is an apocalyptic number.

1109158739 is a deficient number, since it is larger than the sum of its proper divisors (137254093).

1109158739 is a wasteful number, since it uses less digits than its factorization.

1109158739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709597.

The product of its (nonzero) digits is 68040, while the sum is 44.

The square root of 1109158739 is about 33304.0348756723. The cubic root of 1109158739 is about 1035.1371655748.

The spelling of 1109158739 in words is "one billion, one hundred nine million, one hundred fifty-eight thousand, seven hundred thirty-nine".