545041 has 4 divisors (see below), whose sum is σ = 622912. Its totient is φ = 467172.

The previous prime is 545033. The next prime is 545057. The reversal of 545041 is 140545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 140545 = 5 ⋅28109.

It is a cyclic number.

It is not a de Polignac number, because 545041 - 2³ = 545033 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 (545141) 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, 38925 + ... + 38938.

It is an arithmetic number, because the mean of its divisors is an integer number (155728).

2⁵⁴⁵⁰⁴¹ is an apocalyptic number.

It is an amenable number.

545041 is a deficient number, since it is larger than the sum of its proper divisors (77871).

545041 is an equidigital number, since it uses as much as digits as its factorization.

545041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77870.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 545041 is about 738.2689211934. The cubic root of 545041 is about 81.6851399739.

Adding to 545041 its reverse (140545), we get a palindrome (685586).

Subtracting from 545041 its reverse (140545), we obtain a square (404496 = 636²).

The spelling of 545041 in words is "five hundred forty-five thousand, forty-one".