4538565 has 16 divisors (see below), whose sum is σ = 8068800. Its totient is φ = 2420496.

The previous prime is 4538563. The next prime is 4538581. The reversal of 4538565 is 5658354.

It is not a de Polignac number, because 4538565 - 2¹ = 4538563 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

4538565 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4538561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16675 + ... + 16944.

It is an arithmetic number, because the mean of its divisors is an integer number (504300).

Almost surely, 2^4538565 is an apocalyptic number.

4538565 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4538565 is a deficient number, since it is larger than the sum of its proper divisors (3530235).

4538565 is a wasteful number, since it uses less digits than its factorization.

4538565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33633 (or 33627 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 4538565 is about 2130.3908092179. The cubic root of 4538565 is about 165.5666468220.

The spelling of 4538565 in words is "four million, five hundred thirty-eight thousand, five hundred sixty-five".