256146 has 16 divisors (see below), whose sum is σ = 559008. Its totient is φ = 77600.

The previous prime is 256133. The next prime is 256147. The reversal of 256146 is 641652.

256146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×256146² = 131221546632, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁷ + 5⁷ + 1 + 6² + 4⁴ + 6⁶ .

It is a nialpdrome in base 8.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 256146.

It is not an unprimeable number, because it can be changed into a prime (256147) 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, 1875 + ... + 2006.

It is an arithmetic number, because the mean of its divisors is an integer number (34938).

2²⁵⁶¹⁴⁶ is an apocalyptic number.

256146 is an abundant number, since it is smaller than the sum of its proper divisors (302862).

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

256146 is a wasteful number, since it uses less digits than its factorization.

256146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897.

The product of its digits is 1440, while the sum is 24.

The square root of 256146 is about 506.1086839800. The cubic root of 256146 is about 63.5081106469.

Adding to 256146 its reverse (641652), we get a palindrome (897798).

The spelling of 256146 in words is "two hundred fifty-six thousand, one hundred forty-six".