289504161 has 12 divisors (see below), whose sum is σ = 427070592. Its totient is φ = 188896056.

The previous prime is 289504139. The next prime is 289504181. The reversal of 289504161 is 161405982.

It is not a de Polignac number, because 289504161 - 2⁶ = 289504097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (289504181) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 341781 + ... + 342626.

It is an arithmetic number, because the mean of its divisors is an integer number (35589216).

Almost surely, 2^289504161 is an apocalyptic number.

It is an amenable number.

289504161 is a deficient number, since it is larger than the sum of its proper divisors (137566431).

289504161 is a wasteful number, since it uses less digits than its factorization.

289504161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684460 (or 684457 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 289504161 is about 17014.8218033572. The cubic root of 289504161 is about 661.5331369671.

The spelling of 289504161 in words is "two hundred eighty-nine million, five hundred four thousand, one hundred sixty-one".