118505585 has 16 divisors (see below), whose sum is σ = 156425472. Its totient is φ = 86181040.

The previous prime is 118505581. The next prime is 118505599. The reversal of 118505585 is 585505811.

It is a happy number.

It is not a de Polignac number, because 118505585 - 2² = 118505581 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118505581) 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, 2249 + ... + 15558.

It is an arithmetic number, because the mean of its divisors is an integer number (9776592).

Almost surely, 2^118505585 is an apocalyptic number.

It is an amenable number.

118505585 is a deficient number, since it is larger than the sum of its proper divisors (37919887).

118505585 is an equidigital number, since it uses as much as digits as its factorization.

118505585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17845 (or 17823 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 38.

The square root of 118505585 is about 10886.0270530621. The cubic root of 118505585 is about 491.1863313601.

The spelling of 118505585 in words is "one hundred eighteen million, five hundred five thousand, five hundred eighty-five".