288645073 has 2 divisors, whose sum is σ = 288645074. Its totient is φ = 288645072.

The previous prime is 288645047. The next prime is 288645151. The reversal of 288645073 is 370546882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288422289 + 222784 = 16983^2 + 472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-288645073 is a prime.

It is not a weakly prime, because it can be changed into another prime (288645373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144322536 + 144322537.

It is an arithmetic number, because the mean of its divisors is an integer number (144322537).

Almost surely, 2^288645073 is an apocalyptic number.

It is an amenable number.

288645073 is a deficient number, since it is larger than the sum of its proper divisors (1).

288645073 is an equidigital number, since it uses as much as digits as its factorization.

288645073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 288645073 is about 16989.5577635205. The cubic root of 288645073 is about 660.8781339965.

The spelling of 288645073 in words is "two hundred eighty-eight million, six hundred forty-five thousand, seventy-three".