518236142 has 16 divisors (see below), whose sum is σ = 787650480. Its totient is φ = 255697728.

The previous prime is 518236141. The next prime is 518236163. The reversal of 518236142 is 241632815.

It is a junction number, because it is equal to n+sod(n) for n = 518236099 and 518236108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518236141) 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, 96533 + ... + 101759.

It is an arithmetic number, because the mean of its divisors is an integer number (49228155).

Almost surely, 2^518236142 is an apocalyptic number.

518236142 is a deficient number, since it is larger than the sum of its proper divisors (269414338).

518236142 is a wasteful number, since it uses less digits than its factorization.

518236142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5875.

The product of its digits is 11520, while the sum is 32.

The square root of 518236142 is about 22764.8005042873. The cubic root of 518236142 is about 803.2348923334.

Adding to 518236142 its reverse (241632815), we get a palindrome (759868957).

The spelling of 518236142 in words is "five hundred eighteen million, two hundred thirty-six thousand, one hundred forty-two".