2318564138 has 16 divisors (see below), whose sum is σ = 3795984000. Its totient is φ = 1053345600.

The previous prime is 2318564137. The next prime is 2318564141. The reversal of 2318564138 is 8314658132.

It is a junction number, because it is equal to n+sod(n) for n = 2318564095 and 2318564104.

It is not an unprimeable number, because it can be changed into a prime (2318564137) 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, 17618 + ... + 70338.

It is an arithmetic number, because the mean of its divisors is an integer number (237249000).

Almost surely, 2^2318564138 is an apocalyptic number.

2318564138 is a deficient number, since it is larger than the sum of its proper divisors (1477419862).

2318564138 is a wasteful number, since it uses less digits than its factorization.

2318564138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54733.

The product of its digits is 138240, while the sum is 41.

The square root of 2318564138 is about 48151.4707771216. The cubic root of 2318564138 is about 1323.5480262691.

The spelling of 2318564138 in words is "two billion, three hundred eighteen million, five hundred sixty-four thousand, one hundred thirty-eight".