518039122 has 8 divisors (see below), whose sum is σ = 803853900. Its totient is φ = 250087824.

The previous prime is 518039111. The next prime is 518039129. The reversal of 518039122 is 221930815.

It can be written as a sum of positive squares in 2 ways, for example, as 512614881 + 5424241 = 22641^2 + 2329^2 .

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 (518039129) 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, 4465797 + ... + 4465912.

Almost surely, 2^518039122 is an apocalyptic number.

518039122 is a deficient number, since it is larger than the sum of its proper divisors (285814778).

518039122 is a wasteful number, since it uses less digits than its factorization.

518039122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8931740.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 518039122 is about 22760.4727982527. The cubic root of 518039122 is about 803.1330897094.

Adding to 518039122 its reverse (221930815), we get a palindrome (739969937).

The spelling of 518039122 in words is "five hundred eighteen million, thirty-nine thousand, one hundred twenty-two".