124439 has 8 divisors (see below), whose sum is σ = 147360. Its totient is φ = 102816.

The previous prime is 124433. The next prime is 124447. The reversal of 124439 is 934421.

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

It is not a de Polignac number, because 124439 - 2⁸ = 124183 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 (124433) 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, 104 + ... + 509.

It is an arithmetic number, because the mean of its divisors is an integer number (18420).

2¹²⁴⁴³⁹ is an apocalyptic number.

124439 is a deficient number, since it is larger than the sum of its proper divisors (22921).

124439 is an equidigital number, since it uses as much as digits as its factorization.

124439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649.

The product of its digits is 864, while the sum is 23.

The square root of 124439 is about 352.7591246162. The cubic root of 124439 is about 49.9250878194.

It can be divided in two parts, 1244 and 39, that multiplied together give a triangular number (48516 = T₃₁₁).

The spelling of 124439 in words is "one hundred twenty-four thousand, four hundred thirty-nine".