545774 has 4 divisors (see below), whose sum is σ = 818664. Its totient is φ = 272886.

The previous prime is 545773. The next prime is 545789. The reversal of 545774 is 477545.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 545774.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 545774.

It is not an unprimeable number, because it can be changed into a prime (545773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136442 + ... + 136445.

It is an arithmetic number, because the mean of its divisors is an integer number (204666).

2⁵⁴⁵⁷⁷⁴ is an apocalyptic number.

545774 is a deficient number, since it is larger than the sum of its proper divisors (272890).

545774 is a wasteful number, since it uses less digits than its factorization.

545774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272889.

The product of its digits is 19600, while the sum is 32.

The square root of 545774 is about 738.7651859691. The cubic root of 545774 is about 81.7217417381.

The spelling of 545774 in words is "five hundred forty-five thousand, seven hundred seventy-four".