281337 has 8 divisors (see below), whose sum is σ = 428736. Its totient is φ = 160752.

The previous prime is 281327. The next prime is 281339. The reversal of 281337 is 733182.

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

It is not a de Polignac number, because 281337 - 2⁴ = 281321 is a prime.

281337 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 281337.

It is not an unprimeable number, because it can be changed into a prime (281339) 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, 6678 + ... + 6719.

It is an arithmetic number, because the mean of its divisors is an integer number (53592).

2²⁸¹³³⁷ is an apocalyptic number.

It is an amenable number.

281337 is a deficient number, since it is larger than the sum of its proper divisors (147399).

281337 is a wasteful number, since it uses less digits than its factorization.

281337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13407.

The product of its digits is 1008, while the sum is 24.

The square root of 281337 is about 530.4121039343. The cubic root of 281337 is about 65.5252898477.

It can be divided in two parts, 2813 and 37, that added together give a triangular number (2850 = T₇₅).

The spelling of 281337 in words is "two hundred eighty-one thousand, three hundred thirty-seven".