545041321 has 8 divisors (see below), whose sum is σ = 595404000. Its totient is φ = 494814240.

The previous prime is 545041319. The next prime is 545041363. The reversal of 545041321 is 123140545.

It is a happy number.

545041321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 545041321 - 2¹ = 545041319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545041381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25396 + ... + 41653.

It is an arithmetic number, because the mean of its divisors is an integer number (74425500).

Almost surely, 2^545041321 is an apocalyptic number.

It is an amenable number.

545041321 is a deficient number, since it is larger than the sum of its proper divisors (50362679).

545041321 is a wasteful number, since it uses less digits than its factorization.

545041321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67799.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 545041321 is about 23346.1200416686. The cubic root of 545041321 is about 816.8515600991.

Adding to 545041321 its reverse (123140545), we get a palindrome (668181866).

The spelling of 545041321 in words is "five hundred forty-five million, forty-one thousand, three hundred twenty-one".