281043 has 16 divisors (see below), whose sum is σ = 476160. Its totient is φ = 160488.

The previous prime is 281033. The next prime is 281053. The reversal of 281043 is 340182.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (281033) and next prime (281053).

It is not a de Polignac number, because 281043 - 2⁶ = 280979 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 281043.

It is not an unprimeable number, because it can be changed into a prime (281023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555 + ... + 932.

It is an arithmetic number, because the mean of its divisors is an integer number (29760).

2²⁸¹⁰⁴³ is an apocalyptic number.

281043 is a deficient number, since it is larger than the sum of its proper divisors (195117).

281043 is a wasteful number, since it uses less digits than its factorization.

281043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503 (or 1497 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 281043 is about 530.1348884954. The cubic root of 281043 is about 65.5024570296.

The spelling of 281043 in words is "two hundred eighty-one thousand, forty-three".