7143220397 has 2 divisors, whose sum is σ = 7143220398. Its totient is φ = 7143220396.

The previous prime is 7143220391. The next prime is 7143220417. The reversal of 7143220397 is 7930223417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5677019716 + 1466200681 = 75346^2 + 38291^2 .

It is a cyclic number.

It is not a de Polignac number, because 7143220397 - 2¹⁸ = 7142958253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7143220397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7143220391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3571610198 + 3571610199.

It is an arithmetic number, because the mean of its divisors is an integer number (3571610199).

Almost surely, 2^7143220397 is an apocalyptic number.

It is an amenable number.

7143220397 is a deficient number, since it is larger than the sum of its proper divisors (1).

7143220397 is an equidigital number, since it uses as much as digits as its factorization.

7143220397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 7143220397 is about 84517.5744860204. The cubic root of 7143220397 is about 1925.8894318554.

The spelling of 7143220397 in words is "seven billion, one hundred forty-three million, two hundred twenty thousand, three hundred ninety-seven".