289548229 has 2 divisors, whose sum is σ = 289548230. Its totient is φ = 289548228.

The previous prime is 289548227. The next prime is 289548241. The reversal of 289548229 is 922845982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288932004 + 616225 = 16998^2 + 785^2 .

It is a cyclic number.

It is not a de Polignac number, because 289548229 - 2¹ = 289548227 is a prime.

Together with 289548227, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289548221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144774114 + 144774115.

It is an arithmetic number, because the mean of its divisors is an integer number (144774115).

Almost surely, 2^289548229 is an apocalyptic number.

It is an amenable number.

289548229 is a deficient number, since it is larger than the sum of its proper divisors (1).

289548229 is an equidigital number, since it uses as much as digits as its factorization.

289548229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 49.

The square root of 289548229 is about 17016.1167426649. The cubic root of 289548229 is about 661.5667012092.

The spelling of 289548229 in words is "two hundred eighty-nine million, five hundred forty-eight thousand, two hundred twenty-nine".