281152 has 28 divisors (see below), whose sum is σ = 585216. Its totient is φ = 133760.

The previous prime is 281131. The next prime is 281153. The reversal of 281152 is 251182.

It is not an unprimeable number, because it can be changed into a prime (281153) by changing a digit.

281152 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 (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1377 + ... + 1567.

2²⁸¹¹⁵² 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 281152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292608).

281152 is an abundant number, since it is smaller than the sum of its proper divisors (304064).

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

281152 is a wasteful number, since it uses less digits than its factorization.

281152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 216 counting only the distinct ones).

The product of its digits is 160, while the sum is 19.

The square root of 281152 is about 530.2376825538. The cubic root of 281152 is about 65.5109241147.

The spelling of 281152 in words is "two hundred eighty-one thousand, one hundred fifty-two".