281197 has 12 divisors (see below), whose sum is σ = 343840. Its totient is φ = 225216.

The previous prime is 281191. The next prime is 281207. The reversal of 281197 is 791182.

It is not a de Polignac number, because 281197 - 2³ = 281189 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1954 + ... + 2092.

2²⁸¹¹⁹⁷ is an apocalyptic number.

It is an amenable number.

281197 is a deficient number, since it is larger than the sum of its proper divisors (62643).

281197 is a wasteful number, since it uses less digits than its factorization.

281197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 163 counting only the distinct ones).

The product of its digits is 1008, while the sum is 28.

The square root of 281197 is about 530.2801146564. The cubic root of 281197 is about 65.5144190620.

It can be divided in two parts, 28 and 1197, that added together give a triangular number (1225 = T₄₉).

The spelling of 281197 in words is "two hundred eighty-one thousand, one hundred ninety-seven".