4505239 has 4 divisors (see below), whose sum is σ = 4610056. Its totient is φ = 4400424.

The previous prime is 4505233. The next prime is 4505257. The reversal of 4505239 is 9325054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9325054 = 2 ⋅4662527.

It is a cyclic number.

It is not a de Polignac number, because 4505239 - 2⁹ = 4504727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4505233) 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 in 3 ways as a sum of consecutive naturals, for example, 52344 + ... + 52429.

It is an arithmetic number, because the mean of its divisors is an integer number (1152514).

Almost surely, 2^4505239 is an apocalyptic number.

4505239 is a deficient number, since it is larger than the sum of its proper divisors (104817).

4505239 is a wasteful number, since it uses less digits than its factorization.

4505239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104816.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 4505239 is about 2122.5548285027. The cubic root of 4505239 is about 165.1604072150.

The spelling of 4505239 in words is "four million, five hundred five thousand, two hundred thirty-nine".