518126138 has 16 divisors (see below), whose sum is σ = 789445440. Its totient is φ = 255003936.

The previous prime is 518126137. The next prime is 518126183. The reversal of 518126138 is 831621815.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 518126098 and 518126107.

It is not an unprimeable number, because it can be changed into a prime (518126137) 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, 33995 + ... + 46817.

It is an arithmetic number, because the mean of its divisors is an integer number (49340340).

Almost surely, 2^518126138 is an apocalyptic number.

518126138 is a deficient number, since it is larger than the sum of its proper divisors (271319302).

518126138 is a wasteful number, since it uses less digits than its factorization.

518126138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13141.

The product of its digits is 11520, while the sum is 35.

The square root of 518126138 is about 22762.3842775751. The cubic root of 518126138 is about 803.1780551142.

The spelling of 518126138 in words is "five hundred eighteen million, one hundred twenty-six thousand, one hundred thirty-eight".