243016138 has 8 divisors (see below), whose sum is σ = 364928832. Its totient is φ = 121373196.

The previous prime is 243016133. The next prime is 243016141. The reversal of 243016138 is 831610342.

243016138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (243016133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65170 + ... + 68797.

It is an arithmetic number, because the mean of its divisors is an integer number (45616104).

Almost surely, 2^243016138 is an apocalyptic number.

243016138 is a deficient number, since it is larger than the sum of its proper divisors (121912694).

243016138 is a wasteful number, since it uses less digits than its factorization.

243016138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134876.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 243016138 is about 15588.9748861174. The cubic root of 243016138 is about 624.0389607632.

The spelling of 243016138 in words is "two hundred forty-three million, sixteen thousand, one hundred thirty-eight".