1068103649 has 4 divisors (see below), whose sum is σ = 1075900164. Its totient is φ = 1060307136.

The previous prime is 1068103607. The next prime is 1068103651. The reversal of 1068103649 is 9463018601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 481495249 + 586608400 = 21943^2 + 24220^2 .

It is a cyclic number.

It is not a de Polignac number, because 1068103649 - 2²⁴ = 1051326433 is a prime.

It is a super-2 number, since 2×1068103649² = 2281690810014230402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1068103849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3898052 + ... + 3898325.

It is an arithmetic number, because the mean of its divisors is an integer number (268975041).

Almost surely, 2^1068103649 is an apocalyptic number.

It is an amenable number.

1068103649 is a deficient number, since it is larger than the sum of its proper divisors (7796515).

1068103649 is an equidigital number, since it uses as much as digits as its factorization.

1068103649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7796514.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 1068103649 is about 32681.8550422096. The cubic root of 1068103649 is about 1022.2045261066.

The spelling of 1068103649 in words is "one billion, sixty-eight million, one hundred three thousand, six hundred forty-nine".