289138007 has 2 divisors, whose sum is σ = 289138008. Its totient is φ = 289138006.

The previous prime is 289137997. The next prime is 289138043. The reversal of 289138007 is 700831982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 289138007 - 2¹⁰ = 289136983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289138307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144569003 + 144569004.

It is an arithmetic number, because the mean of its divisors is an integer number (144569004).

Almost surely, 2^289138007 is an apocalyptic number.

289138007 is a deficient number, since it is larger than the sum of its proper divisors (1).

289138007 is an equidigital number, since it uses as much as digits as its factorization.

289138007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 289138007 is about 17004.0585449474. The cubic root of 289138007 is about 661.2541252097.

Adding to 289138007 its reverse (700831982), we get a palindrome (989969989).

The spelling of 289138007 in words is "two hundred eighty-nine million, one hundred thirty-eight thousand, seven".