281367 has 16 divisors (see below), whose sum is σ = 442080. Its totient is φ = 176256.

The previous prime is 281363. The next prime is 281381. The reversal of 281367 is 763182.

It is not a de Polignac number, because 281367 - 2² = 281363 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 281367.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 281367.

It is not an unprimeable number, because it can be changed into a prime (281363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153 + ... + 765.

It is an arithmetic number, because the mean of its divisors is an integer number (27630).

2²⁸¹³⁶⁷ is an apocalyptic number.

281367 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

281367 is a deficient number, since it is larger than the sum of its proper divisors (160713).

281367 is a wasteful number, since it uses less digits than its factorization.

281367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 633 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 281367 is about 530.4403830781. The cubic root of 281367 is about 65.5276188325.

The spelling of 281367 in words is "two hundred eighty-one thousand, three hundred sixty-seven".