545079 has 4 divisors (see below), whose sum is σ = 726776. Its totient is φ = 363384.

The previous prime is 545063. The next prime is 545087. The reversal of 545079 is 970545.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 545079 - 2⁴ = 545063 is a prime.

It is a super-2 number, since 2×545079² = 594222232482, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90844 + ... + 90849.

It is an arithmetic number, because the mean of its divisors is an integer number (181694).

2⁵⁴⁵⁰⁷⁹ is an apocalyptic number.

545079 is a deficient number, since it is larger than the sum of its proper divisors (181697).

545079 is a wasteful number, since it uses less digits than its factorization.

545079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181696.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 545079 is about 738.2946566243. The cubic root of 545079 is about 81.6870382795.

The spelling of 545079 in words is "five hundred forty-five thousand, seventy-nine".