545011 has 4 divisors (see below), whose sum is σ = 562624. Its totient is φ = 527400.

The previous prime is 544979. The next prime is 545023. The reversal of 545011 is 110545.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110545 = 5 ⋅22109.

It is a cyclic number.

It is not a de Polignac number, because 545011 - 2⁵ = 544979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545711) 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, 8760 + ... + 8821.

It is an arithmetic number, because the mean of its divisors is an integer number (140656).

2⁵⁴⁵⁰¹¹ is an apocalyptic number.

545011 is a deficient number, since it is larger than the sum of its proper divisors (17613).

545011 is a wasteful number, since it uses less digits than its factorization.

545011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17612.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 545011 is about 738.2486031142. The cubic root of 545011 is about 81.6836412492.

Adding to 545011 its reverse (110545), we get a palindrome (655556).

The spelling of 545011 in words is "five hundred forty-five thousand, eleven".