256126 has 8 divisors (see below), whose sum is σ = 413784. Its totient is φ = 118200.

The previous prime is 256121. The next prime is 256129. The reversal of 256126 is 621652.

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

It is a junction number, because it is equal to n+sod(n) for n = 256097 and 256106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256121) by changing a digit.

256126 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4900 + ... + 4951.

It is an arithmetic number, because the mean of its divisors is an integer number (51723).

2²⁵⁶¹²⁶ is an apocalyptic number.

256126 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

256126 is a deficient number, since it is larger than the sum of its proper divisors (157658).

256126 is a wasteful number, since it uses less digits than its factorization.

256126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9866.

The product of its digits is 720, while the sum is 22.

The square root of 256126 is about 506.0889249924. The cubic root of 256126 is about 63.5064576895.

Adding to 256126 its reverse (621652), we get a palindrome (877778).

The spelling of 256126 in words is "two hundred fifty-six thousand, one hundred twenty-six".