1268946241 has 2 divisors, whose sum is σ = 1268946242. Its totient is φ = 1268946240.

The previous prime is 1268946229. The next prime is 1268946307. The reversal of 1268946241 is 1426498621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1206867600 + 62078641 = 34740^2 + 7879^2 .

It is a cyclic number.

It is not a de Polignac number, because 1268946241 - 2¹⁷ = 1268815169 is a prime.

It is a super-2 number, since 2×1268946241² = 3220449125096060162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1268946841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634473120 + 634473121.

It is an arithmetic number, because the mean of its divisors is an integer number (634473121).

Almost surely, 2^1268946241 is an apocalyptic number.

It is an amenable number.

1268946241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268946241 is an equidigital number, since it uses as much as digits as its factorization.

1268946241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 43.

The square root of 1268946241 is about 35622.2716990368. The cubic root of 1268946241 is about 1082.6325356554.

The spelling of 1268946241 in words is "one billion, two hundred sixty-eight million, nine hundred forty-six thousand, two hundred forty-one".