256120 has 32 divisors (see below), whose sum is σ = 608400. Its totient is φ = 96768.

The previous prime is 256117. The next prime is 256121. The reversal of 256120 is 21652.

It is a happy number.

256120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 256094 and 256103.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592 + ... + 928.

2²⁵⁶¹²⁰ is an apocalyptic number.

256120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304200).

256120 is an abundant number, since it is smaller than the sum of its proper divisors (352280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256120 is a wasteful number, since it uses less digits than its factorization.

256120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 256120 is about 506.0829971457. The cubic root of 256120 is about 63.5059617855.

Adding to 256120 its reverse (21652), we get a palindrome (277772).

The spelling of 256120 in words is "two hundred fifty-six thousand, one hundred twenty".