1068919169 has 2 divisors, whose sum is σ = 1068919170. Its totient is φ = 1068919168.

The previous prime is 1068919133. The next prime is 1068919171. The reversal of 1068919169 is 9619198601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 812535025 + 256384144 = 28505^2 + 16012^2 .

It is an emirp because it is prime and its reverse (9619198601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1068919169 - 2¹² = 1068915073 is a prime.

It is a super-2 number, since 2×1068919169² = 2285176379711301122, which contains 22 as substring.

Together with 1068919171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1068919199) 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, 534459584 + 534459585.

It is an arithmetic number, because the mean of its divisors is an integer number (534459585).

Almost surely, 2^1068919169 is an apocalyptic number.

It is an amenable number.

1068919169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1068919169 is an equidigital number, since it uses as much as digits as its factorization.

1068919169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 50.

The square root of 1068919169 is about 32694.3293095301. The cubic root of 1068919169 is about 1022.4646182682.

The spelling of 1068919169 in words is "one billion, sixty-eight million, nine hundred nineteen thousand, one hundred sixty-nine".