289163445 has 16 divisors (see below), whose sum is σ = 465340032. Its totient is φ = 153327680.

The previous prime is 289163423. The next prime is 289163453. The reversal of 289163445 is 544361982.

It is not a de Polignac number, because 289163445 - 2¹² = 289159349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 289163397 and 289163406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53121 + ... + 58310.

It is an arithmetic number, because the mean of its divisors is an integer number (29083752).

Almost surely, 2^289163445 is an apocalyptic number.

It is an amenable number.

289163445 is a deficient number, since it is larger than the sum of its proper divisors (176176587).

289163445 is a wasteful number, since it uses less digits than its factorization.

289163445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111612.

The product of its digits is 207360, while the sum is 42.

The square root of 289163445 is about 17004.8065263913. The cubic root of 289163445 is about 661.2735167445.

The spelling of 289163445 in words is "two hundred eighty-nine million, one hundred sixty-three thousand, four hundred forty-five".