268915 has 4 divisors (see below), whose sum is σ = 322704. Its totient is φ = 215128.

The previous prime is 268913. The next prime is 268921. The reversal of 268915 is 519862.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 268915 - 2¹ = 268913 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26887 + ... + 26896.

It is an arithmetic number, because the mean of its divisors is an integer number (80676).

2²⁶⁸⁹¹⁵ is an apocalyptic number.

268915 is a deficient number, since it is larger than the sum of its proper divisors (53789).

268915 is an equidigital number, since it uses as much as digits as its factorization.

268915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53788.

The product of its digits is 4320, while the sum is 31.

The square root of 268915 is about 518.5701495458. The cubic root of 268915 is about 64.5463481148.

It can be divided in two parts, 26891 and 5, that added together give a square (26896 = 164²).

The spelling of 268915 in words is "two hundred sixty-eight thousand, nine hundred fifteen".