281275 has 6 divisors (see below), whose sum is σ = 348812. Its totient is φ = 225000.

The previous prime is 281273. The next prime is 281279. The reversal of 281275 is 572182.

It is not a de Polignac number, because 281275 - 2¹ = 281273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 11251 = 281275 / (2 + 8 + 1 + 2 + 7 + 5).

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (281273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5601 + ... + 5650.

2²⁸¹²⁷⁵ is an apocalyptic number.

281275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

281275 is a deficient number, since it is larger than the sum of its proper divisors (67537).

281275 is a wasteful number, since it uses less digits than its factorization.

281275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11261 (or 11256 counting only the distinct ones).

The product of its digits is 1120, while the sum is 25.

The square root of 281275 is about 530.3536555922. The cubic root of 281275 is about 65.5204760876.

The spelling of 281275 in words is "two hundred eighty-one thousand, two hundred seventy-five".