4564509 has 8 divisors (see below), whose sum is σ = 6177120. Its totient is φ = 2997456.

The previous prime is 4564487. The next prime is 4564523. The reversal of 4564509 is 9054654.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4564509 - 2⁵ = 4564477 is a prime.

It is a super-2 number, since 2×4564509² = 41669484822162, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4564509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4564559) 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, 11154 + ... + 11555.

It is an arithmetic number, because the mean of its divisors is an integer number (772140).

Almost surely, 2^4564509 is an apocalyptic number.

It is an amenable number.

4564509 is a deficient number, since it is larger than the sum of its proper divisors (1612611).

4564509 is a wasteful number, since it uses less digits than its factorization.

4564509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22779.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 4564509 is about 2136.4711559017. The cubic root of 4564509 is about 165.8815262462.

The spelling of 4564509 in words is "four million, five hundred sixty-four thousand, five hundred nine".