1271716159 has 12 divisors (see below), whose sum is σ = 1519327704. Its totient is φ = 1060580304.

The previous prime is 1271716157. The next prime is 1271716163. The reversal of 1271716159 is 9516171721.

It is not a de Polignac number, because 1271716159 - 2¹ = 1271716157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271716157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348909 + ... + 352534.

It is an arithmetic number, because the mean of its divisors is an integer number (126610642).

Almost surely, 2^1271716159 is an apocalyptic number.

1271716159 is a deficient number, since it is larger than the sum of its proper divisors (247611545).

1271716159 is an equidigital number, since it uses as much as digits as its factorization.

1271716159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701494 (or 701487 counting only the distinct ones).

The product of its digits is 26460, while the sum is 40.

The square root of 1271716159 is about 35661.1295250165. The cubic root of 1271716159 is about 1083.4197042827.

The spelling of 1271716159 in words is "one billion, two hundred seventy-one million, seven hundred sixteen thousand, one hundred fifty-nine".