108918900 has 54 divisors (see below), whose sum is σ = 341403062. Its totient is φ = 29044800.

The previous prime is 108918889. The next prime is 108918917. The reversal of 108918900 is 9819801.

It can be written as a sum of positive squares in 3 ways, for example, as 675684 + 108243216 = 822^2 + 10404^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 59611 + ... + 61410.

Almost surely, 2^108918900 is an apocalyptic number.

108918900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108918900 is an abundant number, since it is smaller than the sum of its proper divisors (232484162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108918900 is a wasteful number, since it uses less digits than its factorization.

108918900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121041 (or 121031 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 108918900 is about 10436.4218005981. The cubic root of 108918900 is about 477.5671168323.

Subtracting from 108918900 its reverse (9819801), we obtain a palindrome (99099099).

It can be divided in two parts, 10891 and 8900, that added together give a palindrome (19791).

The spelling of 108918900 in words is "one hundred eight million, nine hundred eighteen thousand, nine hundred".