543945 has 8 divisors (see below), whose sum is σ = 870336. Its totient is φ = 290096.

The previous prime is 543929. The next prime is 543967. The reversal of 543945 is 549345.

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 543945 - 2⁴ = 543929 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 543945.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18117 + ... + 18146.

It is an arithmetic number, because the mean of its divisors is an integer number (108792).

2⁵⁴³⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

543945 is a deficient number, since it is larger than the sum of its proper divisors (326391).

543945 is a wasteful number, since it uses less digits than its factorization.

543945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36271.

The product of its digits is 10800, while the sum is 30.

The square root of 543945 is about 737.5262707185. The cubic root of 543945 is about 81.6303508301.

The spelling of 543945 in words is "five hundred forty-three thousand, nine hundred forty-five".