4515009 has 4 divisors (see below), whose sum is σ = 6020016. Its totient is φ = 3010004.

The previous prime is 4515001. The next prime is 4515011. The reversal of 4515009 is 9005154.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4515009 - 2³ = 4515001 is a prime.

It is a D-number.

It is a Curzon number.

4515009 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4515009.

It is not an unprimeable number, because it can be changed into a prime (4515001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752499 + ... + 752504.

It is an arithmetic number, because the mean of its divisors is an integer number (1505004).

Almost surely, 2^4515009 is an apocalyptic number.

It is an amenable number.

4515009 is a deficient number, since it is larger than the sum of its proper divisors (1505007).

4515009 is a wasteful number, since it uses less digits than its factorization.

4515009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505006.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 4515009 is about 2124.8550538801. The cubic root of 4515009 is about 165.2797092216.

It can be divided in two parts, 451 and 5009, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 4515009 in words is "four million, five hundred fifteen thousand, nine".