288314321 has 2 divisors, whose sum is σ = 288314322. Its totient is φ = 288314320.

The previous prime is 288314293. The next prime is 288314359. The reversal of 288314321 is 123413882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 233020225 + 55294096 = 15265^2 + 7436^2 .

It is a cyclic number.

It is not a de Polignac number, because 288314321 - 2¹⁰ = 288313297 is a prime.

It is not a weakly prime, because it can be changed into another prime (288314381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144157160 + 144157161.

It is an arithmetic number, because the mean of its divisors is an integer number (144157161).

Almost surely, 2^288314321 is an apocalyptic number.

It is an amenable number.

288314321 is a deficient number, since it is larger than the sum of its proper divisors (1).

288314321 is an equidigital number, since it uses as much as digits as its factorization.

288314321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 32.

The square root of 288314321 is about 16979.8209943450. The cubic root of 288314321 is about 660.6256089759.

The spelling of 288314321 in words is "two hundred eighty-eight million, three hundred fourteen thousand, three hundred twenty-one".