108000905 has 4 divisors (see below), whose sum is σ = 129601092. Its totient is φ = 86400720.

The previous prime is 108000899. The next prime is 108000913. The reversal of 108000905 is 509000801.

108000905 = 7348² + 7349².

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 53993104 + 54007801 = 7348^2 + 7349^2 .

It is not a de Polignac number, because 108000905 - 2¹² = 107996809 is a prime.

It is a Duffinian number.

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 10800086 + ... + 10800095.

It is an arithmetic number, because the mean of its divisors is an integer number (32400273).

Almost surely, 2^108000905 is an apocalyptic number.

108000905 is the 7349-th centered square number.

It is an amenable number.

108000905 is a deficient number, since it is larger than the sum of its proper divisors (21600187).

108000905 is an equidigital number, since it uses as much as digits as its factorization.

108000905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21600186.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 108000905 is about 10392.3483871548. The cubic root of 108000905 is about 476.2216457700.

The spelling of 108000905 in words is "one hundred eight million, nine hundred five", and thus it is an aban number.