4518523 has 8 divisors (see below), whose sum is σ = 4788800. Its totient is φ = 4251528.

The previous prime is 4518517. The next prime is 4518539. The reversal of 4518523 is 3258154.

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

It is a 6-Lehmer number, since φ(4518523) divides (4518523-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 4518523 - 2⁵ = 4518491 is a prime.

It is a super-3 number, since 3×4518523³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4518491 and 4518500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4518023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2368 + ... + 3826.

It is an arithmetic number, because the mean of its divisors is an integer number (598600).

Almost surely, 2^4518523 is an apocalyptic number.

4518523 is a deficient number, since it is larger than the sum of its proper divisors (270277).

4518523 is a wasteful number, since it uses less digits than its factorization.

4518523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641.

The product of its digits is 4800, while the sum is 28.

The square root of 4518523 is about 2125.6817729848. The cubic root of 4518523 is about 165.3225767839.

It can be divided in two parts, 4518 and 523, that added together give a square (5041 = 71²).

The spelling of 4518523 in words is "four million, five hundred eighteen thousand, five hundred twenty-three".