4581085 has 4 divisors (see below), whose sum is σ = 5497308. Its totient is φ = 3664864.

The previous prime is 4581079. The next prime is 4581107. The reversal of 4581085 is 5801854.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 813604 + 3767481 = 902^2 + 1941^2 .

It is a cyclic number.

It is not a de Polignac number, because 4581085 - 2³ = 4581077 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 458104 + ... + 458113.

It is an arithmetic number, because the mean of its divisors is an integer number (1374327).

Almost surely, 2^4581085 is an apocalyptic number.

It is an amenable number.

4581085 is a deficient number, since it is larger than the sum of its proper divisors (916223).

4581085 is an equidigital number, since it uses as much as digits as its factorization.

4581085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916222.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 4581085 is about 2140.3469344945. The cubic root of 4581085 is about 166.0820830806.

The spelling of 4581085 in words is "four million, five hundred eighty-one thousand, eighty-five".