288247117 has 2 divisors, whose sum is σ = 288247118. Its totient is φ = 288247116.

The previous prime is 288247061. The next prime is 288247139. The reversal of 288247117 is 711742882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265722601 + 22524516 = 16301^2 + 4746^2 .

It is a cyclic number.

It is not a de Polignac number, because 288247117 - 2¹⁹ = 287722829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 288247117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288247187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144123558 + 144123559.

It is an arithmetic number, because the mean of its divisors is an integer number (144123559).

Almost surely, 2^288247117 is an apocalyptic number.

It is an amenable number.

288247117 is a deficient number, since it is larger than the sum of its proper divisors (1).

288247117 is an equidigital number, since it uses as much as digits as its factorization.

288247117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50176, while the sum is 40.

The square root of 288247117 is about 16977.8419417781. The cubic root of 288247117 is about 660.5742759571.

Adding to 288247117 its reverse (711742882), we get a palindrome (999989999).

The spelling of 288247117 in words is "two hundred eighty-eight million, two hundred forty-seven thousand, one hundred seventeen".