118121442 has 16 divisors (see below), whose sum is σ = 248676960. Its totient is φ = 37301472.

The previous prime is 118121429. The next prime is 118121483. The reversal of 118121442 is 244121811.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 517963 + ... + 518190.

It is an arithmetic number, because the mean of its divisors is an integer number (15542310).

Almost surely, 2^118121442 is an apocalyptic number.

118121442 is an abundant number, since it is smaller than the sum of its proper divisors (130555518).

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

118121442 is a wasteful number, since it uses less digits than its factorization.

118121442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036177.

The product of its digits is 512, while the sum is 24.

The square root of 118121442 is about 10868.3688748588. The cubic root of 118121442 is about 490.6550201491.

The spelling of 118121442 in words is "one hundred eighteen million, one hundred twenty-one thousand, four hundred forty-two".