1271298347 has 8 divisors (see below), whose sum is σ = 1416379392. Its totient is φ = 1131135400.

The previous prime is 1271298293. The next prime is 1271298349. The reversal of 1271298347 is 7438921721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1271298347 - 2¹² = 1271294251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1271298298 and 1271298307.

It is not an unprimeable number, because it can be changed into a prime (1271298349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1228979 + ... + 1230012.

It is an arithmetic number, because the mean of its divisors is an integer number (177047424).

Almost surely, 2^1271298347 is an apocalyptic number.

1271298347 is a deficient number, since it is larger than the sum of its proper divisors (145081045).

1271298347 is a wasteful number, since it uses less digits than its factorization.

1271298347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459049.

The product of its digits is 169344, while the sum is 44.

The square root of 1271298347 is about 35655.2709567604. The cubic root of 1271298347 is about 1083.3010417094.

The spelling of 1271298347 in words is "one billion, two hundred seventy-one million, two hundred ninety-eight thousand, three hundred forty-seven".