1260801271 has 2 divisors, whose sum is σ = 1260801272. Its totient is φ = 1260801270.

The previous prime is 1260801193. The next prime is 1260801317. The reversal of 1260801271 is 1721080621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1260801271 - 2⁹ = 1260800759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1260801371) 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, 630400635 + 630400636.

It is an arithmetic number, because the mean of its divisors is an integer number (630400636).

Almost surely, 2^1260801271 is an apocalyptic number.

1260801271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260801271 is an equidigital number, since it uses as much as digits as its factorization.

1260801271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 1260801271 is about 35507.7635313744. The cubic root of 1260801271 is about 1080.3112017567.

Adding to 1260801271 its reverse (1721080621), we get a palindrome (2981881892).

The spelling of 1260801271 in words is "one billion, two hundred sixty million, eight hundred one thousand, two hundred seventy-one".