1068248491 has 2 divisors, whose sum is σ = 1068248492. Its totient is φ = 1068248490.

The previous prime is 1068248449. The next prime is 1068248509. The reversal of 1068248491 is 1948428601.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1068248491 is a prime.

It is a super-2 number, since 2×1068248491² = 2282309677047554162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1068248411) 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, 534124245 + 534124246.

It is an arithmetic number, because the mean of its divisors is an integer number (534124246).

Almost surely, 2^1068248491 is an apocalyptic number.

1068248491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1068248491 is an equidigital number, since it uses as much as digits as its factorization.

1068248491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 1068248491 is about 32684.0709061769. The cubic root of 1068248491 is about 1022.2507299421.

The spelling of 1068248491 in words is "one billion, sixty-eight million, two hundred forty-eight thousand, four hundred ninety-one".