8112197449 has 2 divisors, whose sum is σ = 8112197450. Its totient is φ = 8112197448.

The previous prime is 8112197381. The next prime is 8112197453. The reversal of 8112197449 is 9447912118.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8076257424 + 35940025 = 89868^2 + 5995^2 .

It is a cyclic number.

It is not a de Polignac number, because 8112197449 - 2¹⁷ = 8112066377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8112197399 and 8112197408.

It is not a weakly prime, because it can be changed into another prime (8112197549) 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, 4056098724 + 4056098725.

It is an arithmetic number, because the mean of its divisors is an integer number (4056098725).

Almost surely, 2^8112197449 is an apocalyptic number.

It is an amenable number.

8112197449 is a deficient number, since it is larger than the sum of its proper divisors (1).

8112197449 is an equidigital number, since it uses as much as digits as its factorization.

8112197449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 46.

The square root of 8112197449 is about 90067.7381141549. The cubic root of 8112197449 is about 2009.3064155628.

The spelling of 8112197449 in words is "eight billion, one hundred twelve million, one hundred ninety-seven thousand, four hundred forty-nine".