1268946307 has 2 divisors, whose sum is σ = 1268946308. Its totient is φ = 1268946306.

The previous prime is 1268946241. The next prime is 1268946323. The reversal of 1268946307 is 7036498621.

It is a strong prime.

It is an emirp because it is prime and its reverse (7036498621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1268946307 - 2²⁷ = 1134728579 is a prime.

It is a super-2 number, since 2×1268946307² = 3220449460097876498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1268946347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634473153 + 634473154.

It is an arithmetic number, because the mean of its divisors is an integer number (634473154).

Almost surely, 2^1268946307 is an apocalyptic number.

1268946307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268946307 is an equidigital number, since it uses as much as digits as its factorization.

1268946307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 1268946307 is about 35622.2726254235. The cubic root of 1268946307 is about 1082.6325544252.

It can be divided in two parts, 12689 and 46307, that added together give a triangular number (58996 = T₃₄₃).

The spelling of 1268946307 in words is "one billion, two hundred sixty-eight million, nine hundred forty-six thousand, three hundred seven".