108418181 has 4 divisors (see below), whose sum is σ = 108447264. Its totient is φ = 108389100.

The previous prime is 108418139. The next prime is 108418183. The reversal of 108418181 is 181814801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 181814801 = 7 ⋅25973543.

It is a cyclic number.

It is not a de Polignac number, because 108418181 - 2⁶ = 108418117 is a prime.

It is a super-2 number, since 2×108418181² = 23509003942697522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108418183) 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, 7955 + ... + 16736.

It is an arithmetic number, because the mean of its divisors is an integer number (27111816).

Almost surely, 2^108418181 is an apocalyptic number.

It is an amenable number.

108418181 is a deficient number, since it is larger than the sum of its proper divisors (29083).

108418181 is an equidigital number, since it uses as much as digits as its factorization.

108418181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29082.

The product of its (nonzero) digits is 2048, while the sum is 32.

The square root of 108418181 is about 10412.4051496280. The cubic root of 108418181 is about 476.8341730125.

The spelling of 108418181 in words is "one hundred eight million, four hundred eighteen thousand, one hundred eighty-one".