4540541 has 2 divisors, whose sum is σ = 4540542. Its totient is φ = 4540540.

The previous prime is 4540531. The next prime is 4540573. The reversal of 4540541 is 1450454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3916441 + 624100 = 1979^2 + 790^2 .

It is a cyclic number.

It is not a de Polignac number, because 4540541 - 2¹⁰ = 4539517 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4540531) 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, 2270270 + 2270271.

It is an arithmetic number, because the mean of its divisors is an integer number (2270271).

Almost surely, 2^4540541 is an apocalyptic number.

It is an amenable number.

4540541 is a deficient number, since it is larger than the sum of its proper divisors (1).

4540541 is an equidigital number, since it uses as much as digits as its factorization.

4540541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 4540541 is about 2130.8545234248. The cubic root of 4540541 is about 165.5906714661.

Adding to 4540541 its reverse (1450454), we get a palindrome (5990995).

The spelling of 4540541 in words is "four million, five hundred forty thousand, five hundred forty-one".