281124 has 48 divisors (see below), whose sum is σ = 772800. Its totient is φ = 88128.

The previous prime is 281117. The next prime is 281131. The reversal of 281124 is 421182.

281124 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (281117) and next prime (281131).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 281097 and 281106.

It is an unprimeable number.

281124 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1984 + ... + 2120.

It is an arithmetic number, because the mean of its divisors is an integer number (16100).

2²⁸¹¹²⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 281124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386400).

281124 is an abundant number, since it is smaller than the sum of its proper divisors (491676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

281124 is a wasteful number, since it uses less digits than its factorization.

281124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 161 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 281124 is about 530.2112786428. The cubic root of 281124 is about 65.5087492926.

The spelling of 281124 in words is "two hundred eighty-one thousand, one hundred twenty-four".