256301 has 2 divisors, whose sum is σ = 256302. Its totient is φ = 256300.

The previous prime is 256279. The next prime is 256307. The reversal of 256301 is 103652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203401 + 52900 = 451^2 + 230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256301 is a prime.

It is a Chen prime.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 256301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256307) 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 as a sum of consecutive naturals, namely, 128150 + 128151.

It is an arithmetic number, because the mean of its divisors is an integer number (128151).

2²⁵⁶³⁰¹ is an apocalyptic number.

It is an amenable number.

256301 is a deficient number, since it is larger than the sum of its proper divisors (1).

256301 is an equidigital number, since it uses as much as digits as its factorization.

256301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 256301 is about 506.2617899862. The cubic root of 256301 is about 63.5209181502.

Adding to 256301 its reverse (103652), we get a palindrome (359953).

The spelling of 256301 in words is "two hundred fifty-six thousand, three hundred one".