545045 has 8 divisors (see below), whose sum is σ = 664224. Its totient is φ = 429264.

The previous prime is 545033. The next prime is 545057. The reversal of 545045 is 540545.

It is an interprime number because it is at equal distance from previous prime (545033) and next prime (545057).

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 545045 - 2⁴ = 545029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 545045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479 + ... + 1148.

It is an arithmetic number, because the mean of its divisors is an integer number (83028).

2⁵⁴⁵⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

545045 is a deficient number, since it is larger than the sum of its proper divisors (119179).

545045 is a wasteful number, since it uses less digits than its factorization.

545045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 545045 is about 738.2716302283. The cubic root of 545045 is about 81.6853397997.

The spelling of 545045 in words is "five hundred forty-five thousand, forty-five".