5218308197 has 2 divisors, whose sum is σ = 5218308198. Its totient is φ = 5218308196.

The previous prime is 5218308167. The next prime is 5218308269. The reversal of 5218308197 is 7918038125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5126416801 + 91891396 = 71599^2 + 9586^2 .

It is a cyclic number.

It is not a de Polignac number, because 5218308197 - 2⁶ = 5218308133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5218308167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2609154098 + 2609154099.

It is an arithmetic number, because the mean of its divisors is an integer number (2609154099).

Almost surely, 2^5218308197 is an apocalyptic number.

It is an amenable number.

5218308197 is a deficient number, since it is larger than the sum of its proper divisors (1).

5218308197 is an equidigital number, since it uses as much as digits as its factorization.

5218308197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 5218308197 is about 72237.8584746253. The cubic root of 5218308197 is about 1734.5090696595.

The spelling of 5218308197 in words is "five billion, two hundred eighteen million, three hundred eight thousand, one hundred ninety-seven".