1263966047 has 2 divisors, whose sum is σ = 1263966048. Its totient is φ = 1263966046.

The previous prime is 1263966001. The next prime is 1263966061. The reversal of 1263966047 is 7406693621.

It is a strong prime.

It is an emirp because it is prime and its reverse (7406693621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1263966047 is a prime.

It is a super-2 number, since 2×1263966047² = 3195220335937612418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1263965989 and 1263966007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1263965047) 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, 631983023 + 631983024.

It is an arithmetic number, because the mean of its divisors is an integer number (631983024).

Almost surely, 2^1263966047 is an apocalyptic number.

1263966047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263966047 is an equidigital number, since it uses as much as digits as its factorization.

1263966047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 1263966047 is about 35552.3001646870. The cubic root of 1263966047 is about 1081.2143539453.

The spelling of 1263966047 in words is "one billion, two hundred sixty-three million, nine hundred sixty-six thousand, forty-seven".