4518245 has 4 divisors (see below), whose sum is σ = 5421900. Its totient is φ = 3614592.

The previous prime is 4518233. The next prime is 4518253. The reversal of 4518245 is 5428154.

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 3118756 + 1399489 = 1766^2 + 1183^2 .

It is a cyclic number.

It is not a de Polignac number, because 4518245 - 2¹⁸ = 4256101 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 451820 + ... + 451829.

It is an arithmetic number, because the mean of its divisors is an integer number (1355475).

Almost surely, 2^4518245 is an apocalyptic number.

It is an amenable number.

4518245 is a deficient number, since it is larger than the sum of its proper divisors (903655).

4518245 is an equidigital number, since it uses as much as digits as its factorization.

4518245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903654.

The product of its digits is 6400, while the sum is 29.

The square root of 4518245 is about 2125.6163811939. The cubic root of 4518245 is about 165.3191862498.

Subtracting 4518245 from its reverse (5428154), we obtain a palindrome (909909).

The spelling of 4518245 in words is "four million, five hundred eighteen thousand, two hundred forty-five".