281073 has 8 divisors (see below), whose sum is σ = 403648. Its totient is φ = 172944.

The previous prime is 281069. The next prime is 281081. The reversal of 281073 is 370182.

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

It is not a de Polignac number, because 281073 - 2² = 281069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 281073.

It is not an unprimeable number, because it can be changed into a prime (281023) 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, 3565 + ... + 3642.

It is an arithmetic number, because the mean of its divisors is an integer number (50456).

2²⁸¹⁰⁷³ is an apocalyptic number.

It is an amenable number.

281073 is a deficient number, since it is larger than the sum of its proper divisors (122575).

281073 is a wasteful number, since it uses less digits than its factorization.

281073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7223.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 281073 is about 530.1631824259. The cubic root of 281073 is about 65.5047876383.

The spelling of 281073 in words is "two hundred eighty-one thousand, seventy-three".