545123 has 8 divisors (see below), whose sum is σ = 576288. Its totient is φ = 514624.

The previous prime is 545117. The next prime is 545131. The reversal of 545123 is 321545.

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

It is a cyclic number.

It is not a de Polignac number, because 545123 - 2¹⁰ = 544099 is a prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 545095 and 545104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545143) 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, 3065 + ... + 3237.

It is an arithmetic number, because the mean of its divisors is an integer number (72036).

2⁵⁴⁵¹²³ is an apocalyptic number.

545123 is a deficient number, since it is larger than the sum of its proper divisors (31165).

545123 is a wasteful number, since it uses less digits than its factorization.

545123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333.

The product of its digits is 600, while the sum is 20.

The square root of 545123 is about 738.3244544237. The cubic root of 545123 is about 81.6892362073.

Adding to 545123 its reverse (321545), we get a palindrome (866668).

The spelling of 545123 in words is "five hundred forty-five thousand, one hundred twenty-three".