118108285 has 4 divisors (see below), whose sum is σ = 141729948. Its totient is φ = 94486624.

The previous prime is 118108283. The next prime is 118108297. The reversal of 118108285 is 582801811.

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 30891364 + 87216921 = 5558^2 + 9339^2 .

It is a cyclic number.

It is not a de Polignac number, because 118108285 - 2¹ = 118108283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118108285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118108283) 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 3 ways as a sum of consecutive naturals, for example, 11810824 + ... + 11810833.

It is an arithmetic number, because the mean of its divisors is an integer number (35432487).

Almost surely, 2^118108285 is an apocalyptic number.

It is an amenable number.

118108285 is a deficient number, since it is larger than the sum of its proper divisors (23621663).

118108285 is an equidigital number, since it uses as much as digits as its factorization.

118108285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23621662.

The product of its (nonzero) digits is 5120, while the sum is 34.

The square root of 118108285 is about 10867.7635693826. The cubic root of 118108285 is about 490.6368022098.

The spelling of 118108285 in words is "one hundred eighteen million, one hundred eight thousand, two hundred eighty-five".