545705 has 4 divisors (see below), whose sum is σ = 654852. Its totient is φ = 436560.

The previous prime is 545663. The next prime is 545711. The reversal of 545705 is 507545.

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

It can be written as a sum of positive squares in 2 ways, for example, as 394384 + 151321 = 628^2 + 389^2 .

It is not a de Polignac number, because 545705 - 2⁶ = 545641 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54566 + ... + 54575.

It is an arithmetic number, because the mean of its divisors is an integer number (163713).

2⁵⁴⁵⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

545705 is a deficient number, since it is larger than the sum of its proper divisors (109147).

545705 is a wasteful number, since it uses less digits than its factorization.

545705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109146.

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 545705 is about 738.7184849454. The cubic root of 545705 is about 81.7182976765.

The spelling of 545705 in words is "five hundred forty-five thousand, seven hundred five".