281234 has 4 divisors (see below), whose sum is σ = 421854. Its totient is φ = 140616.

The previous prime is 281233. The next prime is 281243. The reversal of 281234 is 432182.

281234 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 432182 = 2 ⋅216091.

It can be written as a sum of positive squares in only one way, i.e., 247009 + 34225 = 497^2 + 185^2 .

It is not an unprimeable number, because it can be changed into a prime (281233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70307 + ... + 70310.

2²⁸¹²³⁴ is an apocalyptic number.

281234 is a deficient number, since it is larger than the sum of its proper divisors (140620).

281234 is a wasteful number, since it uses less digits than its factorization.

281234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140619.

The product of its digits is 384, while the sum is 20.

The square root of 281234 is about 530.3150007307. The cubic root of 281234 is about 65.5172924061.

It can be divided in two parts, 281 and 234, that added together give a palindrome (515).

The spelling of 281234 in words is "two hundred eighty-one thousand, two hundred thirty-four".