124856 has 8 divisors (see below), whose sum is σ = 234120. Its totient is φ = 62424.

The previous prime is 124853. The next prime is 124897. The reversal of 124856 is 658421.

124856 = T₂₀₁ + T₂₀₂ + ... + T₂₀₆.

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 1 + 2 + 8 + 4³ + 5⁷ + 6⁶ .

It is a congruent 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 (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7796 + ... + 7811.

It is an arithmetic number, because the mean of its divisors is an integer number (29265).

124856 is a Friedman number, since it can be written as (5^6-18)*4*2, using all its digits and the basic arithmetic operations.

2¹²⁴⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

124856 is a deficient number, since it is larger than the sum of its proper divisors (109264).

124856 is a wasteful number, since it uses less digits than its factorization.

124856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15613 (or 15609 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 124856 is about 353.3496851562. The cubic root of 124856 is about 49.9807926225.

The spelling of 124856 in words is "one hundred twenty-four thousand, eight hundred fifty-six".