4500845 has 4 divisors (see below), whose sum is σ = 5401020. Its totient is φ = 3600672.

The previous prime is 4500799. The next prime is 4500851. The reversal of 4500845 is 5480054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5480054 = 2 ⋅2740027.

It can be written as a sum of positive squares in 2 ways, for example, as 702244 + 3798601 = 838^2 + 1949^2 .

It is a cyclic number.

It is not a de Polignac number, because 4500845 - 2⁸ = 4500589 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450080 + ... + 450089.

It is an arithmetic number, because the mean of its divisors is an integer number (1350255).

Almost surely, 2^4500845 is an apocalyptic number.

It is an amenable number.

4500845 is a deficient number, since it is larger than the sum of its proper divisors (900175).

4500845 is an equidigital number, since it uses as much as digits as its factorization.

4500845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900174.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 4500845 is about 2121.5195026207. The cubic root of 4500845 is about 165.1066956073.

Adding to 4500845 its reverse (5480054), we get a palindrome (9980899).

It can be divided in two parts, 4500 and 845, that multiplied together give a square (3802500 = 1950²).

The spelling of 4500845 in words is "four million, five hundred thousand, eight hundred forty-five".