4581081 has 12 divisors (see below), whose sum is σ = 6796452. Its totient is φ = 2971296.

The previous prime is 4581079. The next prime is 4581107. The reversal of 4581081 is 1801854.

4581081 is a `hidden beast` number, since 4 + 581 + 0 + 81 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2005056 + 2576025 = 1416^2 + 1605^2 .

It is not a de Polignac number, because 4581081 - 2¹ = 4581079 is a prime.

It is a super-2 number, since 2×4581081² = 41972606257122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4581011) 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 11 ways as a sum of consecutive naturals, for example, 6546 + ... + 7211.

It is an arithmetic number, because the mean of its divisors is an integer number (566371).

Almost surely, 2^4581081 is an apocalyptic number.

It is an amenable number.

4581081 is a deficient number, since it is larger than the sum of its proper divisors (2215371).

4581081 is a wasteful number, since it uses less digits than its factorization.

4581081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13800 (or 13797 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 4581081 is about 2140.3460000663. The cubic root of 4581081 is about 166.0820347421.

The spelling of 4581081 in words is "four million, five hundred eighty-one thousand, eighty-one".