118881544 has 32 divisors (see below), whose sum is σ = 240482520. Its totient is φ = 54885376.

The previous prime is 118881533. The next prime is 118881547. The reversal of 118881544 is 445188811.

It can be written as a sum of positive squares in 4 ways, for example, as 97259044 + 21622500 = 9862^2 + 4650^2 .

It is a junction number, because it is equal to n+sod(n) for n = 118881497 and 118881506.

It is not an unprimeable number, because it can be changed into a prime (118881547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039 + ... + 15454.

Almost surely, 2^118881544 is an apocalyptic number.

It is an amenable number.

118881544 is an abundant number, since it is smaller than the sum of its proper divisors (121600976).

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

118881544 is a wasteful number, since it uses less digits than its factorization.

118881544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16569 (or 16565 counting only the distinct ones).

The product of its digits is 40960, while the sum is 40.

The square root of 118881544 is about 10903.2813409542. The cubic root of 118881544 is about 491.7052126184.

The spelling of 118881544 in words is "one hundred eighteen million, eight hundred eighty-one thousand, five hundred forty-four".