118735881 has 16 divisors (see below), whose sum is σ = 172922880. Its totient is φ = 71871120.

The previous prime is 118735873. The next prime is 118735931. The reversal of 118735881 is 188537811.

It is not a de Polignac number, because 118735881 - 2³ = 118735873 is a prime.

It is a super-2 number, since 2×118735881² = 28196418873692322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118735861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32556 + ... + 36018.

It is an arithmetic number, because the mean of its divisors is an integer number (10807680).

Almost surely, 2^118735881 is an apocalyptic number.

118735881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

118735881 is a deficient number, since it is larger than the sum of its proper divisors (54186999).

118735881 is a wasteful number, since it uses less digits than its factorization.

118735881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4516.

The product of its digits is 53760, while the sum is 42.

The square root of 118735881 is about 10896.5995154452. The cubic root of 118735881 is about 491.5043052650.

The spelling of 118735881 in words is "one hundred eighteen million, seven hundred thirty-five thousand, eight hundred eighty-one".