1260538271 has 2 divisors, whose sum is σ = 1260538272. Its totient is φ = 1260538270.

The previous prime is 1260538267. The next prime is 1260538283. The reversal of 1260538271 is 1728350621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1260538271 - 2² = 1260538267 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1260538171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630269135 + 630269136.

It is an arithmetic number, because the mean of its divisors is an integer number (630269136).

Almost surely, 2^1260538271 is an apocalyptic number.

1260538271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260538271 is an equidigital number, since it uses as much as digits as its factorization.

1260538271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1260538271 is about 35504.0599227750. The cubic root of 1260538271 is about 1080.2360797925.

Adding to 1260538271 its reverse (1728350621), we get a palindrome (2988888892).

The spelling of 1260538271 in words is "one billion, two hundred sixty million, five hundred thirty-eight thousand, two hundred seventy-one".