268751 has 4 divisors (see below), whose sum is σ = 307152. Its totient is φ = 230352.

The previous prime is 268747. The next prime is 268757. The reversal of 268751 is 157862.

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 268751 - 2² = 268747 is a prime.

It is a super-3 number, since 3×268751³ = 58233316057106253, which contains 333 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268757) 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, 19190 + ... + 19203.

It is an arithmetic number, because the mean of its divisors is an integer number (76788).

268751 is a Friedman number, since it can be written as 86*5^(7-2)+1, using all its digits and the basic arithmetic operations.

2²⁶⁸⁷⁵¹ is an apocalyptic number.

268751 is a deficient number, since it is larger than the sum of its proper divisors (38401).

268751 is an equidigital number, since it uses as much as digits as its factorization.

268751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38400.

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

The square root of 268751 is about 518.4119983179. The cubic root of 268751 is about 64.5332240747.

Subtracting from 268751 its reverse (157862), we obtain a square (110889 = 333²).

The spelling of 268751 in words is "two hundred sixty-eight thousand, seven hundred fifty-one".