118085709 has 32 divisors (see below), whose sum is σ = 188835840. Its totient is φ = 64209600.

The previous prime is 118085701. The next prime is 118085713. The reversal of 118085709 is 907580811.

It is not a de Polignac number, because 118085709 - 2³ = 118085701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118085701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41874 + ... + 44604.

It is an arithmetic number, because the mean of its divisors is an integer number (5901120).

Almost surely, 2^118085709 is an apocalyptic number.

It is an amenable number.

118085709 is a deficient number, since it is larger than the sum of its proper divisors (70750131).

118085709 is a wasteful number, since it uses less digits than its factorization.

118085709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2841.

The product of its (nonzero) digits is 20160, while the sum is 39.

The square root of 118085709 is about 10866.7248515825. The cubic root of 118085709 is about 490.6055390282.

The spelling of 118085709 in words is "one hundred eighteen million, eighty-five thousand, seven hundred nine".