124039 has 4 divisors (see below), whose sum is σ = 129456. Its totient is φ = 118624.

The previous prime is 124021. The next prime is 124067. The reversal of 124039 is 930421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930421 = 643 ⋅1447.

It is a cyclic number.

It is not a de Polignac number, because 124039 - 2⁷ = 123911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2674 + ... + 2719.

It is an arithmetic number, because the mean of its divisors is an integer number (32364).

2¹²⁴⁰³⁹ is an apocalyptic number.

124039 is a deficient number, since it is larger than the sum of its proper divisors (5417).

124039 is an equidigital number, since it uses as much as digits as its factorization.

124039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5416.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 124039 is about 352.1917091585. The cubic root of 124039 is about 49.8715368939.

The spelling of 124039 in words is "one hundred twenty-four thousand, thirty-nine".