1271441457 has 24 divisors (see below), whose sum is σ = 2157599808. Its totient is φ = 711295200.

The previous prime is 1271441417. The next prime is 1271441459. The reversal of 1271441457 is 7541441721.

It is not a de Polignac number, because 1271441457 - 2¹⁰ = 1271440433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1271441459) 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 in 23 ways as a sum of consecutive naturals, for example, 492669 + ... + 495242.

It is an arithmetic number, because the mean of its divisors is an integer number (89899992).

Almost surely, 2^1271441457 is an apocalyptic number.

It is an amenable number.

1271441457 is a deficient number, since it is larger than the sum of its proper divisors (886158351).

1271441457 is a wasteful number, since it uses less digits than its factorization.

1271441457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987941 (or 987938 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 1271441457 is about 35657.2777564413. The cubic root of 1271441457 is about 1083.3416892347.

The spelling of 1271441457 in words is "one billion, two hundred seventy-one million, four hundred forty-one thousand, four hundred fifty-seven".