124879 has 4 divisors (see below), whose sum is σ = 127584. Its totient is φ = 122176.

The previous prime is 124853. The next prime is 124897. The reversal of 124879 is 978421.

124879 is nontrivially palindromic in base 2.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978421 = 139 ⋅7039.

It is a cyclic number.

It is not a de Polignac number, because 124879 - 2⁵ = 124847 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

124879 is a lucky number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 124879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1282 + ... + 1375.

It is an arithmetic number, because the mean of its divisors is an integer number (31896).

2¹²⁴⁸⁷⁹ is an apocalyptic number.

124879 is a deficient number, since it is larger than the sum of its proper divisors (2705).

124879 is an equidigital number, since it uses as much as digits as its factorization.

124879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704.

The product of its digits is 4032, while the sum is 31.

The square root of 124879 is about 353.3822293212. The cubic root of 124879 is about 49.9838614582.

The spelling of 124879 in words is "one hundred twenty-four thousand, eight hundred seventy-nine".