545112 has 48 divisors (see below), whose sum is σ = 1511640. Its totient is φ = 177408.

The previous prime is 545093. The next prime is 545117. The reversal of 545112 is 211545.

545112 is nontrivially palindromic in base 16.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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

545112 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 11 ways as a sum of consecutive naturals, for example, 4768 + ... + 4880.

2⁵⁴⁵¹¹² is an apocalyptic number.

545112 is the 603-rd pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (755820).

545112 is an abundant number, since it is smaller than the sum of its proper divisors (966528).

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

545112 is a wasteful number, since it uses less digits than its factorization.

545112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 185 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 545112 is about 738.3170050866. The cubic root of 545112 is about 81.6886867365.

Adding to 545112 its reverse (211545), we get a palindrome (756657).

The spelling of 545112 in words is "five hundred forty-five thousand, one hundred twelve".