289126 has 4 divisors (see below), whose sum is σ = 433692. Its totient is φ = 144562.

The previous prime is 289111. The next prime is 289127. The reversal of 289126 is 621982.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 289094 and 289103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72280 + ... + 72283.

It is an arithmetic number, because the mean of its divisors is an integer number (108423).

2²⁸⁹¹²⁶ is an apocalyptic number.

289126 is a deficient number, since it is larger than the sum of its proper divisors (144566).

289126 is a wasteful number, since it uses less digits than its factorization.

289126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144565.

The product of its digits is 1728, while the sum is 28.

The square root of 289126 is about 537.7043797478. The cubic root of 289126 is about 66.1244971809.

The spelling of 289126 in words is "two hundred eighty-nine thousand, one hundred twenty-six".