288395213 has 2 divisors, whose sum is σ = 288395214. Its totient is φ = 288395212.

The previous prime is 288395209. The next prime is 288395221. The reversal of 288395213 is 312593882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288388324 + 6889 = 16982^2 + 83^2 .

It is a cyclic number.

It is not a de Polignac number, because 288395213 - 2² = 288395209 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288392213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144197606 + 144197607.

It is an arithmetic number, because the mean of its divisors is an integer number (144197607).

Almost surely, 2^288395213 is an apocalyptic number.

It is an amenable number.

288395213 is a deficient number, since it is larger than the sum of its proper divisors (1).

288395213 is an equidigital number, since it uses as much as digits as its factorization.

288395213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The square root of 288395213 is about 16982.2028311995. The cubic root of 288395213 is about 660.6873868411.

The spelling of 288395213 in words is "two hundred eighty-eight million, three hundred ninety-five thousand, two hundred thirteen".