281126 has 16 divisors (see below), whose sum is σ = 451440. Its totient is φ = 131040.

The previous prime is 281117. The next prime is 281131. The reversal of 281126 is 621182.

It is a junction number, because it is equal to n+sod(n) for n = 281098 and 281107.

It is a congruent number.

It is an unprimeable number.

281126 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 7 ways as a sum of consecutive naturals, for example, 2081 + ... + 2211.

It is an arithmetic number, because the mean of its divisors is an integer number (28215).

2²⁸¹¹²⁶ is an apocalyptic number.

281126 is a deficient number, since it is larger than the sum of its proper divisors (170314).

281126 is a wasteful number, since it uses less digits than its factorization.

281126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199.

The product of its digits is 192, while the sum is 20.

The square root of 281126 is about 530.2131646800. The cubic root of 281126 is about 65.5089046418.

The spelling of 281126 in words is "two hundred eighty-one thousand, one hundred twenty-six".