105820118 has 16 divisors (see below), whose sum is σ = 162440640. Its totient is φ = 51682176.

The previous prime is 105820109. The next prime is 105820123. The reversal of 105820118 is 811028501.

It is a super-2 number, since 2×105820118² = 22395794747067848, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 23246 + ... + 27422.

It is an arithmetic number, because the mean of its divisors is an integer number (10152540).

Almost surely, 2^105820118 is an apocalyptic number.

105820118 is a deficient number, since it is larger than the sum of its proper divisors (56620522).

105820118 is a wasteful number, since it uses less digits than its factorization.

105820118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4471.

The product of its (nonzero) digits is 640, while the sum is 26.

The square root of 105820118 is about 10286.8905894833. The cubic root of 105820118 is about 472.9944888040.

Adding to 105820118 its reverse (811028501), we get a palindrome (916848619).

The spelling of 105820118 in words is "one hundred five million, eight hundred twenty thousand, one hundred eighteen".