118809017 has 4 divisors (see below), whose sum is σ = 118944756. Its totient is φ = 118673280.

The previous prime is 118809011. The next prime is 118809049. The reversal of 118809017 is 710908811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13623481 + 105185536 = 3691^2 + 10256^2 .

It is a cyclic number.

It is not a de Polignac number, because 118809017 - 2⁴ = 118809001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118809011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66548 + ... + 68309.

It is an arithmetic number, because the mean of its divisors is an integer number (29736189).

Almost surely, 2^118809017 is an apocalyptic number.

It is an amenable number.

118809017 is a deficient number, since it is larger than the sum of its proper divisors (135739).

118809017 is an equidigital number, since it uses as much as digits as its factorization.

118809017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135738.

The product of its (nonzero) digits is 4032, while the sum is 35.

The square root of 118809017 is about 10899.9549081636. The cubic root of 118809017 is about 491.6051994530.

The spelling of 118809017 in words is "one hundred eighteen million, eight hundred nine thousand, seventeen".