4581009 has 8 divisors (see below), whose sum is σ = 6786720. Its totient is φ = 3053988.

The previous prime is 4580999. The next prime is 4581011. The reversal of 4581009 is 9001854.

It is not a de Polignac number, because 4581009 - 2¹⁵ = 4548241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 169667 = 4581009 / (4 + 5 + 8 + 1 + 0 + 0 + 9).

It is not an unprimeable number, because it can be changed into a prime (4581079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84807 + ... + 84860.

It is an arithmetic number, because the mean of its divisors is an integer number (848340).

Almost surely, 2^4581009 is an apocalyptic number.

It is an amenable number.

4581009 is a deficient number, since it is larger than the sum of its proper divisors (2205711).

4581009 is a wasteful number, since it uses less digits than its factorization.

4581009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169676 (or 169670 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 4581009 is about 2140.3291802898. The cubic root of 4581009 is about 166.0811646440.

The spelling of 4581009 in words is "four million, five hundred eighty-one thousand, nine".