124523 has 4 divisors (see below), whose sum is σ = 142320. Its totient is φ = 106728.

The previous prime is 124513. The next prime is 124529. The reversal of 124523 is 325421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 124523 - 2⁶ = 124459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124529) 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 3 ways as a sum of consecutive naturals, for example, 8888 + ... + 8901.

It is an arithmetic number, because the mean of its divisors is an integer number (35580).

2¹²⁴⁵²³ is an apocalyptic number.

124523 is a deficient number, since it is larger than the sum of its proper divisors (17797).

124523 is an equidigital number, since it uses as much as digits as its factorization.

124523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17796.

The product of its digits is 240, while the sum is 17.

The square root of 124523 is about 352.8781659440. The cubic root of 124523 is about 49.9363189289.

Adding to 124523 its reverse (325421), we get a palindrome (449944).

The spelling of 124523 in words is "one hundred twenty-four thousand, five hundred twenty-three".