1271454313 has 2 divisors, whose sum is σ = 1271454314. Its totient is φ = 1271454312.

The previous prime is 1271454299. The next prime is 1271454323. The reversal of 1271454313 is 3134541721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 712462864 + 558991449 = 26692^2 + 23643^2 .

It is an emirp because it is prime and its reverse (3134541721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1271454313 - 2²⁵ = 1237899881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1271454323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635727156 + 635727157.

It is an arithmetic number, because the mean of its divisors is an integer number (635727157).

Almost surely, 2^1271454313 is an apocalyptic number.

It is an amenable number.

1271454313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1271454313 is an equidigital number, since it uses as much as digits as its factorization.

1271454313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 1271454313 is about 35657.4580277394. The cubic root of 1271454313 is about 1083.3453405743.

The spelling of 1271454313 in words is "one billion, two hundred seventy-one million, four hundred fifty-four thousand, three hundred thirteen".