545230409 has 16 divisors (see below), whose sum is σ = 605553408. Its totient is φ = 488639232.

The previous prime is 545230393. The next prime is 545230417. The reversal of 545230409 is 904032545.

It is a happy number.

545230409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 545230409 - 2⁴ = 545230393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545260409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20342 + ... + 38784.

It is an arithmetic number, because the mean of its divisors is an integer number (37847088).

Almost surely, 2^545230409 is an apocalyptic number.

It is an amenable number.

545230409 is a deficient number, since it is larger than the sum of its proper divisors (60322999).

545230409 is a wasteful number, since it uses less digits than its factorization.

545230409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18544.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 545230409 is about 23350.1693569875. The cubic root of 545230409 is about 816.9460110234.

The spelling of 545230409 in words is "five hundred forty-five million, two hundred thirty thousand, four hundred nine".