1260441647 has 2 divisors, whose sum is σ = 1260441648. Its totient is φ = 1260441646.

The previous prime is 1260441619. The next prime is 1260441649. The reversal of 1260441647 is 7461440621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1260441647 - 2¹⁴ = 1260425263 is a prime.

Together with 1260441649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1260441649) 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, 630220823 + 630220824.

It is an arithmetic number, because the mean of its divisors is an integer number (630220824).

Almost surely, 2^1260441647 is an apocalyptic number.

1260441647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260441647 is an equidigital number, since it uses as much as digits as its factorization.

1260441647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 1260441647 is about 35502.6991509096. The cubic root of 1260441647 is about 1080.2084779866.

The spelling of 1260441647 in words is "one billion, two hundred sixty million, four hundred forty-one thousand, six hundred forty-seven".