123573 has 8 divisors (see below), whose sum is σ = 174528. Its totient is φ = 77504.

The previous prime is 123553. The next prime is 123581. The reversal of 123573 is 375321.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123503) 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, 1161 + ... + 1262.

It is an arithmetic number, because the mean of its divisors is an integer number (21816).

2¹²³⁵⁷³ is an apocalyptic number.

It is an amenable number.

123573 is a deficient number, since it is larger than the sum of its proper divisors (50955).

123573 is a wasteful number, since it uses less digits than its factorization.

123573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443.

The product of its digits is 630, while the sum is 21.

The square root of 123573 is about 351.5295151193. The cubic root of 123573 is about 49.8090046781.

Adding to 123573 its reverse (375321), we get a palindrome (498894).

It can be divided in two parts, 123 and 573, that added together give a palindrome (696).

The spelling of 123573 in words is "one hundred twenty-three thousand, five hundred seventy-three".