289147 has 4 divisors (see below), whose sum is σ = 290800. Its totient is φ = 287496.

The previous prime is 289141. The next prime is 289151. The reversal of 289147 is 741982.

It is a semiprime because it is the product of two primes.

It is a 3-Lehmer number, since φ(289147) divides (289147-1)³.

It is a cyclic number.

It is not a de Polignac number, because 289147 - 2³ = 289139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289141) 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 3 ways as a sum of consecutive naturals, for example, 528 + ... + 925.

It is an arithmetic number, because the mean of its divisors is an integer number (72700).

2²⁸⁹¹⁴⁷ is an apocalyptic number.

289147 is a deficient number, since it is larger than the sum of its proper divisors (1653).

289147 is a wasteful number, since it uses less digits than its factorization.

289147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652.

The product of its digits is 4032, while the sum is 31.

The square root of 289147 is about 537.7239068518. The cubic root of 289147 is about 66.1260980756.

The spelling of 289147 in words is "two hundred eighty-nine thousand, one hundred forty-seven".