118744542 has 80 divisors (see below), whose sum is σ = 310437600. Its totient is φ = 33911136.

The previous prime is 118744529. The next prime is 118744553. The reversal of 118744542 is 245447811.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 118744497 and 118744506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 54498 + ... + 56634.

It is an arithmetic number, because the mean of its divisors is an integer number (3880470).

Almost surely, 2^118744542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118744542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155218800).

118744542 is an abundant number, since it is smaller than the sum of its proper divisors (191693058).

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

118744542 is an equidigital number, since it uses as much as digits as its factorization.

118744542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172 (or 2149 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 118744542 is about 10896.9969257589. The cubic root of 118744542 is about 491.5162556411.

The spelling of 118744542 in words is "one hundred eighteen million, seven hundred forty-four thousand, five hundred forty-two".