124859 has 4 divisors (see below), whose sum is σ = 142704. Its totient is φ = 107016.

The previous prime is 124853. The next prime is 124897. The reversal of 124859 is 958421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 958421 = 29 ⋅33049.

It is not a de Polignac number, because 124859 - 2¹² = 120763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124853) 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, 8912 + ... + 8925.

It is an arithmetic number, because the mean of its divisors is an integer number (35676).

2¹²⁴⁸⁵⁹ is an apocalyptic number.

124859 is a deficient number, since it is larger than the sum of its proper divisors (17845).

124859 is an equidigital number, since it uses as much as digits as its factorization.

124859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17844.

The product of its digits is 2880, while the sum is 29.

The square root of 124859 is about 353.3539302173. The cubic root of 124859 is about 49.9811929268.

The spelling of 124859 in words is "one hundred twenty-four thousand, eight hundred fifty-nine".