118216144 has 20 divisors (see below), whose sum is σ = 236433280. Its totient is φ = 57201120.

The previous prime is 118216123. The next prime is 118216169. The reversal of 118216144 is 441612811.

118216144 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118674 + ... + 119665.

It is an arithmetic number, because the mean of its divisors is an integer number (11821664).

Almost surely, 2^118216144 is an apocalyptic number.

It is an amenable number.

118216144 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118216144 is a wasteful number, since it uses less digits than its factorization.

118216144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238378 (or 238372 counting only the distinct ones).

The product of its digits is 1536, while the sum is 28.

The square root of 118216144 is about 10872.7247734871. The cubic root of 118216144 is about 490.7861100926.

Adding to 118216144 its reverse (441612811), we get a palindrome (559828955).

The spelling of 118216144 in words is "one hundred eighteen million, two hundred sixteen thousand, one hundred forty-four".