100108605 has 16 divisors (see below), whose sum is σ = 160519680. Its totient is φ = 53275968.

The previous prime is 100108577. The next prime is 100108607. The reversal of 100108605 is 506801001.

It is not a de Polignac number, because 100108605 - 2¹² = 100104509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100108607) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 219 + ... + 14151.

It is an arithmetic number, because the mean of its divisors is an integer number (10032480).

Almost surely, 2^100108605 is an apocalyptic number.

100108605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100108605 is a deficient number, since it is larger than the sum of its proper divisors (60411075).

100108605 is a wasteful number, since it uses less digits than its factorization.

100108605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14420.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 100108605 is about 10005.4287764193. The cubic root of 100108605 is about 464.3268558189.

Adding to 100108605 its reverse (506801001), we get a palindrome (606909606).

The spelling of 100108605 in words is "one hundred million, one hundred eight thousand, six hundred five".