7243775197 has 2 divisors, whose sum is σ = 7243775198. Its totient is φ = 7243775196.

The previous prime is 7243775183. The next prime is 7243775221. The reversal of 7243775197 is 7915773427.

7243775197 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5266550041 + 1977225156 = 72571^2 + 44466^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7243775197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7243775597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3621887598 + 3621887599.

It is an arithmetic number, because the mean of its divisors is an integer number (3621887599).

Almost surely, 2^7243775197 is an apocalyptic number.

It is an amenable number.

7243775197 is a deficient number, since it is larger than the sum of its proper divisors (1).

7243775197 is an equidigital number, since it uses as much as digits as its factorization.

7243775197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2593080, while the sum is 52.

The square root of 7243775197 is about 85110.3706783139. The cubic root of 7243775197 is about 1934.8842434431.

The spelling of 7243775197 in words is "seven billion, two hundred forty-three million, seven hundred seventy-five thousand, one hundred ninety-seven".