108540218 has 4 divisors (see below), whose sum is σ = 162810330. Its totient is φ = 54270108.

The previous prime is 108540199. The next prime is 108540221. The reversal of 108540218 is 812045801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 812045801 = 7 ⋅116006543.

It can be written as a sum of positive squares in only one way, i.e., 72982849 + 35557369 = 8543^2 + 5963^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 27135053 + ... + 27135056.

Almost surely, 2^108540218 is an apocalyptic number.

108540218 is a deficient number, since it is larger than the sum of its proper divisors (54270112).

108540218 is an equidigital number, since it uses as much as digits as its factorization.

108540218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54270111.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 108540218 is about 10418.2636749124. The cubic root of 108540218 is about 477.0130163006.

The spelling of 108540218 in words is "one hundred eight million, five hundred forty thousand, two hundred eighteen".