256178 has 16 divisors (see below), whose sum is σ = 423360. Its totient is φ = 115536.

The previous prime is 256169. The next prime is 256181. The reversal of 256178 is 871652.

It is a self number, because there is not a number n which added to its sum of digits gives 256178.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1451 + ... + 1617.

It is an arithmetic number, because the mean of its divisors is an integer number (26460).

2²⁵⁶¹⁷⁸ is an apocalyptic number.

256178 is a deficient number, since it is larger than the sum of its proper divisors (167182).

256178 is a wasteful number, since it uses less digits than its factorization.

256178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241.

The product of its digits is 3360, while the sum is 29.

The square root of 256178 is about 506.1402967558. The cubic root of 256178 is about 63.5107551998.

It can be divided in two parts, 256 and 178, that added together give a palindrome (434).

The spelling of 256178 in words is "two hundred fifty-six thousand, one hundred seventy-eight".