564123 has 8 divisors (see below), whose sum is σ = 859648. Its totient is φ = 322344.

The previous prime is 564103. The next prime is 564127. The reversal of 564123 is 321465.

It is a happy number.

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

It is not a de Polignac number, because 564123 - 2⁶ = 564059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 26863 = 564123 / (5 + 6 + 4 + 1 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 564123.

It is not an unprimeable number, because it can be changed into a prime (564127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13411 + ... + 13452.

It is an arithmetic number, because the mean of its divisors is an integer number (107456).

2⁵⁶⁴¹²³ is an apocalyptic number.

564123 is a deficient number, since it is larger than the sum of its proper divisors (295525).

564123 is a wasteful number, since it uses less digits than its factorization.

564123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26873.

The product of its digits is 720, while the sum is 21.

The square root of 564123 is about 751.0812206413. The cubic root of 564123 is about 82.6274979924.

Adding to 564123 its reverse (321465), we get a palindrome (885588).

The spelling of 564123 in words is "five hundred sixty-four thousand, one hundred twenty-three".