1270681271 has 4 divisors (see below), whose sum is σ = 1281926352. Its totient is φ = 1259436192.

The previous prime is 1270681229. The next prime is 1270681273. The reversal of 1270681271 is 1721860721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1721860721 = 7 ⋅245980103.

It is a cyclic number.

It is not a de Polignac number, because 1270681271 - 2¹⁸ = 1270419127 is a prime.

It is a super-2 number, since 2×1270681271² = 3229261784940350882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270681273) 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 3 ways as a sum of consecutive naturals, for example, 5622371 + ... + 5622596.

It is an arithmetic number, because the mean of its divisors is an integer number (320481588).

Almost surely, 2^1270681271 is an apocalyptic number.

1270681271 is a deficient number, since it is larger than the sum of its proper divisors (11245081).

1270681271 is a wasteful number, since it uses less digits than its factorization.

1270681271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11245080.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 1270681271 is about 35646.6165435094. The cubic root of 1270681271 is about 1083.1257387046.

The spelling of 1270681271 in words is "one billion, two hundred seventy million, six hundred eighty-one thousand, two hundred seventy-one".