281463 has 16 divisors (see below), whose sum is σ = 462336. Its totient is φ = 148320.

The previous prime is 281431. The next prime is 281509. The reversal of 281463 is 364182.

It is a happy number.

It is not a de Polignac number, because 281463 - 2⁵ = 281431 is a prime.

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 281463.

It is not an unprimeable number, because it can be changed into a prime (281423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243 + ... + 788.

It is an arithmetic number, because the mean of its divisors is an integer number (28896).

2²⁸¹⁴⁶³ is an apocalyptic number.

281463 is a deficient number, since it is larger than the sum of its proper divisors (180873).

281463 is a wasteful number, since it uses less digits than its factorization.

281463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054.

The product of its digits is 1152, while the sum is 24.

The square root of 281463 is about 530.5308662086. The cubic root of 281463 is about 65.5350704717.

The spelling of 281463 in words is "two hundred eighty-one thousand, four hundred sixty-three".