268143 has 4 divisors (see below), whose sum is σ = 357528. Its totient is φ = 178760.

The previous prime is 268133. The next prime is 268153. The reversal of 268143 is 341862.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (268133) and next prime (268153).

It is a cyclic number.

It is not a de Polignac number, because 268143 - 2⁸ = 267887 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268123) 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 3 ways as a sum of consecutive naturals, for example, 44688 + ... + 44693.

It is an arithmetic number, because the mean of its divisors is an integer number (89382).

2²⁶⁸¹⁴³ is an apocalyptic number.

268143 is a deficient number, since it is larger than the sum of its proper divisors (89385).

268143 is an equidigital number, since it uses as much as digits as its factorization.

268143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89384.

The product of its digits is 1152, while the sum is 24.

The square root of 268143 is about 517.8252601023. The cubic root of 268143 is about 64.4845224566.

The spelling of 268143 in words is "two hundred sixty-eight thousand, one hundred forty-three".