545874 has 32 divisors (see below), whose sum is σ = 1282176. Its totient is φ = 151680.

The previous prime is 545873. The next prime is 545893. The reversal of 545874 is 478545.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (545873) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1564 + ... + 1880.

It is an arithmetic number, because the mean of its divisors is an integer number (40068).

2⁵⁴⁵⁸⁷⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641088).

545874 is an abundant number, since it is smaller than the sum of its proper divisors (736302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545874 is a wasteful number, since it uses less digits than its factorization.

545874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370.

The product of its digits is 22400, while the sum is 33.

The square root of 545874 is about 738.8328633730. The cubic root of 545874 is about 81.7267326165.

The spelling of 545874 in words is "five hundred forty-five thousand, eight hundred seventy-four".