118109765 has 8 divisors (see below), whose sum is σ = 142217208. Its totient is φ = 94164160.

The previous prime is 118109759. The next prime is 118109773. The reversal of 118109765 is 567901811.

It can be written as a sum of positive squares in 4 ways, for example, as 7628644 + 110481121 = 2762^2 + 10511^2 .

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

It is not a de Polignac number, because 118109765 - 2¹⁶ = 118044229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38846 + ... + 41775.

It is an arithmetic number, because the mean of its divisors is an integer number (17777151).

Almost surely, 2^118109765 is an apocalyptic number.

It is an amenable number.

118109765 is a deficient number, since it is larger than the sum of its proper divisors (24107443).

118109765 is an equidigital number, since it uses as much as digits as its factorization.

118109765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80919.

The product of its (nonzero) digits is 15120, while the sum is 38.

The square root of 118109765 is about 10867.8316604555. The cubic root of 118109765 is about 490.6388515705.

The spelling of 118109765 in words is "one hundred eighteen million, one hundred nine thousand, seven hundred sixty-five".