1271313 has 6 divisors (see below), whose sum is σ = 1836354. Its totient is φ = 847536.

The previous prime is 1271299. The next prime is 1271317. The reversal of 1271313 is 3131721.

It can be written as a sum of positive squares in only one way, i.e., 831744 + 439569 = 912^2 + 663^2 .

It is not a de Polignac number, because 1271313 - 2¹³ = 1263121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1271317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70620 + ... + 70637.

It is an arithmetic number, because the mean of its divisors is an integer number (306059).

2^1271313 is an apocalyptic number.

It is an amenable number.

1271313 is a deficient number, since it is larger than the sum of its proper divisors (565041).

1271313 is a wasteful number, since it uses less digits than its factorization.

1271313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141263 (or 141260 counting only the distinct ones).

The product of its digits is 126, while the sum is 18.

The square root of 1271313 is about 1127.5251660163. The cubic root of 1271313 is about 108.3305203740.

The spelling of 1271313 in words is "one million, two hundred seventy-one thousand, three hundred thirteen".