118208985 has 16 divisors (see below), whose sum is σ = 190089600. Its totient is φ = 62727984.

The previous prime is 118208947. The next prime is 118208989. The reversal of 118208985 is 589802811.

It is not a de Polignac number, because 118208985 - 2⁸ = 118208729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118208989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593916 + ... + 594114.

It is an arithmetic number, because the mean of its divisors is an integer number (11880600).

Almost surely, 2^118208985 is an apocalyptic number.

118208985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118208985 is a deficient number, since it is larger than the sum of its proper divisors (71880615).

118208985 is an frugal number, since it uses more digits than its factorization.

118208985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 42.

The square root of 118208985 is about 10872.3955501996. The cubic root of 118208985 is about 490.7762027918.

The spelling of 118208985 in words is "one hundred eighteen million, two hundred eight thousand, nine hundred eighty-five".