289156 has 24 divisors (see below), whose sum is σ = 604800. Its totient is φ = 118272.

The previous prime is 289151. The next prime is 289169. The reversal of 289156 is 651982.

It is a super-2 number, since 2×289156² = 167222384672, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420 + ... + 868.

It is an arithmetic number, because the mean of its divisors is an integer number (25200).

2²⁸⁹¹⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302400).

289156 is an abundant number, since it is smaller than the sum of its proper divisors (315644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289156 is a wasteful number, since it uses less digits than its factorization.

289156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 481 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 289156 is about 537.7322753936. The cubic root of 289156 is about 66.1267841496.

The spelling of 289156 in words is "two hundred eighty-nine thousand, one hundred fifty-six".