545111 has 8 divisors (see below), whose sum is σ = 637824. Its totient is φ = 456120.

The previous prime is 545093. The next prime is 545117. The reversal of 545111 is 111545.

545111 = 151² + 152² + ... + 171².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-545111 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 545111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605 + ... + 1206.

It is an arithmetic number, because the mean of its divisors is an integer number (79728).

2⁵⁴⁵¹¹¹ is an apocalyptic number.

545111 is a deficient number, since it is larger than the sum of its proper divisors (92713).

545111 is a wasteful number, since it uses less digits than its factorization.

545111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861.

The product of its digits is 100, while the sum is 17.

The square root of 545111 is about 738.3163278704. The cubic root of 545111 is about 81.6886367842.

Adding to 545111 its reverse (111545), we get a palindrome (656656).

It can be divided in two parts, 545 and 111, that added together give a palindrome (656).

The spelling of 545111 in words is "five hundred forty-five thousand, one hundred eleven".