256124 has 12 divisors (see below), whose sum is σ = 489048. Its totient is φ = 116400.

The previous prime is 256121. The next prime is 256129. The reversal of 256124 is 421652.

It is a happy number.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 256096 and 256105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256121) 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 in 3 ways as a sum of consecutive naturals, for example, 2867 + ... + 2954.

It is an arithmetic number, because the mean of its divisors is an integer number (40754).

2²⁵⁶¹²⁴ is an apocalyptic number.

It is an amenable number.

256124 is a deficient number, since it is larger than the sum of its proper divisors (232924).

256124 is a wasteful number, since it uses less digits than its factorization.

256124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5836 (or 5834 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 256124 is about 506.0869490512. The cubic root of 256124 is about 63.5062923890.

Adding to 256124 its reverse (421652), we get a palindrome (677776).

The spelling of 256124 in words is "two hundred fifty-six thousand, one hundred twenty-four".