1268065171 has 2 divisors, whose sum is σ = 1268065172. Its totient is φ = 1268065170.

The previous prime is 1268065159. The next prime is 1268065219. The reversal of 1268065171 is 1715608621.

It is a weak prime.

It is an emirp because it is prime and its reverse (1715608621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1268065171 - 2¹⁷ = 1267934099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1268065171.

It is not a weakly prime, because it can be changed into another prime (1268065151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634032585 + 634032586.

It is an arithmetic number, because the mean of its divisors is an integer number (634032586).

Almost surely, 2^1268065171 is an apocalyptic number.

1268065171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268065171 is an equidigital number, since it uses as much as digits as its factorization.

1268065171 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 37.

The square root of 1268065171 is about 35609.9027097800. The cubic root of 1268065171 is about 1082.3819088305.

The spelling of 1268065171 in words is "one billion, two hundred sixty-eight million, sixty-five thousand, one hundred seventy-one".