118422144 has 48 divisors (see below), whose sum is σ = 340775370. Its totient is φ = 39473664.

The previous prime is 118422091. The next prime is 118422149. The reversal of 118422144 is 441224811.

It can be written as a sum of positive squares in only one way, i.e., 114062400 + 4359744 = 10680^2 + 2088^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (118422149) 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 5 ways as a sum of consecutive naturals, for example, 50247 + ... + 52550.

Almost surely, 2^118422144 is an apocalyptic number.

It is an amenable number.

118422144 is an abundant number, since it is smaller than the sum of its proper divisors (222353226).

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

118422144 is a wasteful number, since it uses less digits than its factorization.

118422144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102817 (or 102802 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 118422144 is about 10882.1938964530. The cubic root of 118422144 is about 491.0710211780.

Adding to 118422144 its reverse (441224811), we get a palindrome (559646955).

The spelling of 118422144 in words is "one hundred eighteen million, four hundred twenty-two thousand, one hundred forty-four".