4518541 has 2 divisors, whose sum is σ = 4518542. Its totient is φ = 4518540.

The previous prime is 4518539. The next prime is 4518559. The reversal of 4518541 is 1458154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4515625 + 2916 = 2125^2 + 54^2 .

It is a cyclic number.

It is not a de Polignac number, because 4518541 - 2¹ = 4518539 is a prime.

Together with 4518539, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4518571) 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 as a sum of consecutive naturals, namely, 2259270 + 2259271.

It is an arithmetic number, because the mean of its divisors is an integer number (2259271).

Almost surely, 2^4518541 is an apocalyptic number.

It is an amenable number.

4518541 is a deficient number, since it is larger than the sum of its proper divisors (1).

4518541 is an equidigital number, since it uses as much as digits as its factorization.

4518541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3200, while the sum is 28.

The square root of 4518541 is about 2125.6860069164. The cubic root of 4518541 is about 165.3227963101.

The spelling of 4518541 in words is "four million, five hundred eighteen thousand, five hundred forty-one".