545841 has 6 divisors (see below), whose sum is σ = 788450. Its totient is φ = 363888.

The previous prime is 545827. The next prime is 545843. The reversal of 545841 is 148545.

It can be written as a sum of positive squares in only one way, i.e., 531441 + 14400 = 729^2 + 120^2 .

It is not a de Polignac number, because 545841 - 2⁹ = 545329 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (545843) 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 5 ways as a sum of consecutive naturals, for example, 30316 + ... + 30333.

2⁵⁴⁵⁸⁴¹ is an apocalyptic number.

It is an amenable number.

545841 is a deficient number, since it is larger than the sum of its proper divisors (242609).

545841 is a wasteful number, since it uses less digits than its factorization.

545841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60655 (or 60652 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 545841 is about 738.8105305151. The cubic root of 545841 is about 81.7250856940.

The spelling of 545841 in words is "five hundred forty-five thousand, eight hundred forty-one".