4545839 has 2 divisors, whose sum is σ = 4545840. Its totient is φ = 4545838.

The previous prime is 4545833. The next prime is 4545859. The reversal of 4545839 is 9385454.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4545839 - 2¹² = 4541743 is a prime.

It is a Sophie Germain 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 (4545833) 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 as a sum of consecutive naturals, namely, 2272919 + 2272920.

It is an arithmetic number, because the mean of its divisors is an integer number (2272920).

Almost surely, 2^4545839 is an apocalyptic number.

4545839 is a deficient number, since it is larger than the sum of its proper divisors (1).

4545839 is an equidigital number, since it uses as much as digits as its factorization.

4545839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 38.

The square root of 4545839 is about 2132.0973242326. The cubic root of 4545839 is about 165.6550513407.

The spelling of 4545839 in words is "four million, five hundred forty-five thousand, eight hundred thirty-nine".