243081118 has 16 divisors (see below), whose sum is σ = 420536160. Its totient is φ = 103221216.

The previous prime is 243081101. The next prime is 243081119. The reversal of 243081118 is 811180342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243081119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78121 + ... + 81172.

It is an arithmetic number, because the mean of its divisors is an integer number (26283510).

Almost surely, 2^243081118 is an apocalyptic number.

243081118 is a deficient number, since it is larger than the sum of its proper divisors (177455042).

243081118 is a wasteful number, since it uses less digits than its factorization.

243081118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159411.

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

The square root of 243081118 is about 15591.0589120816. The cubic root of 243081118 is about 624.0945763261.

The spelling of 243081118 in words is "two hundred forty-three million, eighty-one thousand, one hundred eighteen".