288215513 has 2 divisors, whose sum is σ = 288215514. Its totient is φ = 288215512.

The previous prime is 288215509. The next prime is 288215563. The reversal of 288215513 is 315512882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 275161744 + 13053769 = 16588^2 + 3613^2 .

It is a cyclic number.

It is not a de Polignac number, because 288215513 - 2² = 288215509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (288215563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144107756 + 144107757.

It is an arithmetic number, because the mean of its divisors is an integer number (144107757).

Almost surely, 2^288215513 is an apocalyptic number.

It is an amenable number.

288215513 is a deficient number, since it is larger than the sum of its proper divisors (1).

288215513 is an equidigital number, since it uses as much as digits as its factorization.

288215513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19200, while the sum is 35.

The square root of 288215513 is about 16976.9111737088. The cubic root of 288215513 is about 660.5501328391.

The spelling of 288215513 in words is "two hundred eighty-eight million, two hundred fifteen thousand, five hundred thirteen".