7213146569 has 2 divisors, whose sum is σ = 7213146570. Its totient is φ = 7213146568.

The previous prime is 7213146511. The next prime is 7213146601. The reversal of 7213146569 is 9656413127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7129606969 + 83539600 = 84437^2 + 9140^2 .

It is a cyclic number.

It is not a de Polignac number, because 7213146569 - 2⁸ = 7213146313 is a prime.

It is a super-2 number, since 2×7213146569² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7213146509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3606573284 + 3606573285.

It is an arithmetic number, because the mean of its divisors is an integer number (3606573285).

Almost surely, 2^7213146569 is an apocalyptic number.

It is an amenable number.

7213146569 is a deficient number, since it is larger than the sum of its proper divisors (1).

7213146569 is an equidigital number, since it uses as much as digits as its factorization.

7213146569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The square root of 7213146569 is about 84930.2453134335. The cubic root of 7213146569 is about 1932.1533206263.

The spelling of 7213146569 in words is "seven billion, two hundred thirteen million, one hundred forty-six thousand, five hundred sixty-nine".