4481539 has 4 divisors (see below), whose sum is σ = 4489056. Its totient is φ = 4474024.

The previous prime is 4481537. The next prime is 4481567. The reversal of 4481539 is 9351844.

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

It is a cyclic number.

It is not a de Polignac number, because 4481539 - 2¹ = 4481537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4481537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2779 + ... + 4084.

It is an arithmetic number, because the mean of its divisors is an integer number (1122264).

Almost surely, 2^4481539 is an apocalyptic number.

4481539 is a deficient number, since it is larger than the sum of its proper divisors (7517).

4481539 is an equidigital number, since it uses as much as digits as its factorization.

4481539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7516.

The product of its digits is 17280, while the sum is 34.

The square root of 4481539 is about 2116.9645722118. The cubic root of 4481539 is about 164.8702867897.

The spelling of 4481539 in words is "four million, four hundred eighty-one thousand, five hundred thirty-nine".