256299 has 8 divisors (see below), whose sum is σ = 351120. Its totient is φ = 166176.

The previous prime is 256279. The next prime is 256301. The reversal of 256299 is 992652.

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

It is not a de Polignac number, because 256299 - 2¹⁶ = 190763 is a prime.

256299 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (256219) 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 in 7 ways as a sum of consecutive naturals, for example, 1044 + ... + 1265.

It is an arithmetic number, because the mean of its divisors is an integer number (43890).

2²⁵⁶²⁹⁹ is an apocalyptic number.

256299 is a deficient number, since it is larger than the sum of its proper divisors (94821).

256299 is a wasteful number, since it uses less digits than its factorization.

256299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349.

The product of its digits is 9720, while the sum is 33.

The square root of 256299 is about 506.2598147197. The cubic root of 256299 is about 63.5207529250.

It can be divided in two parts, 256 and 299, that added together give a palindrome (555).

The spelling of 256299 in words is "two hundred fifty-six thousand, two hundred ninety-nine".