281841 has 8 divisors (see below), whose sum is σ = 429504. Its totient is φ = 161040.

The previous prime is 281839. The next prime is 281849. The reversal of 281841 is 148182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 281841 - 2¹ = 281839 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 281841.

It is not an unprimeable number, because it can be changed into a prime (281849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6690 + ... + 6731.

It is an arithmetic number, because the mean of its divisors is an integer number (53688).

2²⁸¹⁸⁴¹ is an apocalyptic number.

281841 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

281841 is a deficient number, since it is larger than the sum of its proper divisors (147663).

281841 is a wasteful number, since it uses less digits than its factorization.

281841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13431.

The product of its digits is 512, while the sum is 24.

The square root of 281841 is about 530.8869936248. The cubic root of 281841 is about 65.5643948416.

The spelling of 281841 in words is "two hundred eighty-one thousand, eight hundred forty-one".