1260643283 has 2 divisors, whose sum is σ = 1260643284. Its totient is φ = 1260643282.

The previous prime is 1260643231. The next prime is 1260643297. The reversal of 1260643283 is 3823460621.

It is a strong prime.

It is an emirp because it is prime and its reverse (3823460621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1260643283 is a prime.

It is not a weakly prime, because it can be changed into another prime (1260642283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630321641 + 630321642.

It is an arithmetic number, because the mean of its divisors is an integer number (630321642).

Almost surely, 2^1260643283 is an apocalyptic number.

1260643283 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260643283 is an equidigital number, since it uses as much as digits as its factorization.

1260643283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 1260643283 is about 35505.5387650997. The cubic root of 1260643283 is about 1080.2660761318.

The spelling of 1260643283 in words is "one billion, two hundred sixty million, six hundred forty-three thousand, two hundred eighty-three".