281033 has 2 divisors, whose sum is σ = 281034. Its totient is φ = 281032.

The previous prime is 281023. The next prime is 281053. The reversal of 281033 is 330182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204304 + 76729 = 452^2 + 277^2 .

It is a cyclic number.

It is not a de Polignac number, because 281033 - 2¹⁰ = 280009 is a prime.

It is a Chen prime.

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 281033.

It is not a weakly prime, because it can be changed into another prime (281023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140516 + 140517.

It is an arithmetic number, because the mean of its divisors is an integer number (140517).

2²⁸¹⁰³³ is an apocalyptic number.

It is an amenable number.

281033 is a deficient number, since it is larger than the sum of its proper divisors (1).

281033 is an equidigital number, since it uses as much as digits as its factorization.

281033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 281033 is about 530.1254568496. The cubic root of 281033 is about 65.5016801232.

The spelling of 281033 in words is "two hundred eighty-one thousand, thirty-three".