5145509 has 8 divisors (see below), whose sum is σ = 5575680. Its totient is φ = 4729536.

The previous prime is 5145493. The next prime is 5145521. The reversal of 5145509 is 9055415.

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

It is not a de Polignac number, because 5145509 - 2⁴ = 5145493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5145529) 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, 2789 + ... + 4250.

It is an arithmetic number, because the mean of its divisors is an integer number (696960).

Almost surely, 2^5145509 is an apocalyptic number.

It is an amenable number.

5145509 is a deficient number, since it is larger than the sum of its proper divisors (430171).

5145509 is a wasteful number, since it uses less digits than its factorization.

5145509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7099.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 5145509 is about 2268.3714422466. The cubic root of 5145509 is about 172.6405379948.

The spelling of 5145509 in words is "five million, one hundred forty-five thousand, five hundred nine".