1068450191 has 2 divisors, whose sum is σ = 1068450192. Its totient is φ = 1068450190.

The previous prime is 1068450169. The next prime is 1068450287. The reversal of 1068450191 is 1910548601.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1068450191 is a prime.

It is a super-2 number, since 2×1068450191² = 2283171621295872962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1068450101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534225095 + 534225096.

It is an arithmetic number, because the mean of its divisors is an integer number (534225096).

Almost surely, 2^1068450191 is an apocalyptic number.

1068450191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1068450191 is an equidigital number, since it uses as much as digits as its factorization.

1068450191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 1068450191 is about 32687.1563614824. The cubic root of 1068450191 is about 1022.3150642234.

Adding to 1068450191 its reverse (1910548601), we get a palindrome (2978998792).

The spelling of 1068450191 in words is "one billion, sixty-eight million, four hundred fifty thousand, one hundred ninety-one".