4513509 has 64 divisors (see below), whose sum is σ = 9031680. Its totient is φ = 2151360.

The previous prime is 4513499. The next prime is 4513513. The reversal of 4513509 is 9053154.

It is not a de Polignac number, because 4513509 - 2⁵ = 4513477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4513549) 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 63 ways as a sum of consecutive naturals, for example, 26944 + ... + 27110.

It is an arithmetic number, because the mean of its divisors is an integer number (141120).

Almost surely, 2^4513509 is an apocalyptic number.

It is an amenable number.

4513509 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

4513509 is a wasteful number, since it uses less digits than its factorization.

4513509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 4513509 is about 2124.5020593071. The cubic root of 4513509 is about 165.2614038300.

The spelling of 4513509 in words is "four million, five hundred thirteen thousand, five hundred nine".