518678142 has 8 divisors (see below), whose sum is σ = 1037356296. Its totient is φ = 172892712.

The previous prime is 518678141. The next prime is 518678189. The reversal of 518678142 is 241876815.

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

518678142 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 518678094 and 518678103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518678141) 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 3 ways as a sum of consecutive naturals, for example, 43223173 + ... + 43223184.

It is an arithmetic number, because the mean of its divisors is an integer number (129669537).

Almost surely, 2^518678142 is an apocalyptic number.

518678142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

518678142 is a wasteful number, since it uses less digits than its factorization.

518678142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86446362.

The product of its digits is 107520, while the sum is 42.

The square root of 518678142 is about 22774.5064051891. The cubic root of 518678142 is about 803.4631852597.

The spelling of 518678142 in words is "five hundred eighteen million, six hundred seventy-eight thousand, one hundred forty-two".