918109039 has 8 divisors (see below), whose sum is σ = 946225280. Its totient is φ = 890300376.

The previous prime is 918109037. The next prime is 918109061. The reversal of 918109039 is 930901819.

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 918109039 - 2¹ = 918109037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 918108992 and 918109010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918109033) 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, 70827 + ... + 82780.

It is an arithmetic number, because the mean of its divisors is an integer number (118278160).

Almost surely, 2^918109039 is an apocalyptic number.

918109039 is a deficient number, since it is larger than the sum of its proper divisors (28116241).

918109039 is a wasteful number, since it uses less digits than its factorization.

918109039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153789.

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 918109039 is about 30300.3141732887. The cubic root of 918109039 is about 971.9220186018.

The spelling of 918109039 in words is "nine hundred eighteen million, one hundred nine thousand, thirty-nine".