518142023 has 6 divisors (see below), whose sum is σ = 602736696. Its totient is φ = 444121692.

The previous prime is 518142017. The next prime is 518142109. The reversal of 518142023 is 320241815.

It is not a de Polignac number, because 518142023 - 2⁴ = 518142007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 518141983 and 518142001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518142323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5287115 + ... + 5287212.

It is an arithmetic number, because the mean of its divisors is an integer number (100456116).

Almost surely, 2^518142023 is an apocalyptic number.

518142023 is a deficient number, since it is larger than the sum of its proper divisors (84594673).

518142023 is a wasteful number, since it uses less digits than its factorization.

518142023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10574341 (or 10574334 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 518142023 is about 22762.7332058345. The cubic root of 518142023 is about 803.1862631238.

Adding to 518142023 its reverse (320241815), we get a palindrome (838383838).

The spelling of 518142023 in words is "five hundred eighteen million, one hundred forty-two thousand, twenty-three".