118105811 has 8 divisors (see below), whose sum is σ = 119070720. Its totient is φ = 117144648.

The previous prime is 118105781. The next prime is 118105829. The reversal of 118105811 is 118501811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 118105811 - 2⁶ = 118105747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118105831) 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 7 ways as a sum of consecutive naturals, for example, 108110 + ... + 109196.

It is an arithmetic number, because the mean of its divisors is an integer number (14883840).

Almost surely, 2^118105811 is an apocalyptic number.

118105811 is a deficient number, since it is larger than the sum of its proper divisors (964909).

118105811 is a wasteful number, since it uses less digits than its factorization.

118105811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873.

The product of its (nonzero) digits is 320, while the sum is 26.

The square root of 118105811 is about 10867.6497459202. The cubic root of 118105811 is about 490.6333764159.

The spelling of 118105811 in words is "one hundred eighteen million, one hundred five thousand, eight hundred eleven".