4518229 has 4 divisors (see below), whose sum is σ = 4674060. Its totient is φ = 4362400.

The previous prime is 4518221. The next prime is 4518233. The reversal of 4518229 is 9228154.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1385329 + 3132900 = 1177^2 + 1770^2 .

It is a cyclic number.

It is not a de Polignac number, because 4518229 - 2³ = 4518221 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4518229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4518221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77872 + ... + 77929.

It is an arithmetic number, because the mean of its divisors is an integer number (1168515).

Almost surely, 2^4518229 is an apocalyptic number.

It is an amenable number.

4518229 is a deficient number, since it is larger than the sum of its proper divisors (155831).

4518229 is a wasteful number, since it uses less digits than its factorization.

4518229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155830.

The product of its digits is 5760, while the sum is 31.

The square root of 4518229 is about 2125.6126175764. The cubic root of 4518229 is about 165.3189911069.

The spelling of 4518229 in words is "four million, five hundred eighteen thousand, two hundred twenty-nine".