1313447272 has 32 divisors (see below), whose sum is σ = 2513371680. Its totient is φ = 643256640.

The previous prime is 1313447249. The next prime is 1313447273. The reversal of 1313447272 is 2727443131.

It is not an unprimeable number, because it can be changed into a prime (1313447273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290743 + ... + 295225.

It is an arithmetic number, because the mean of its divisors is an integer number (78542865).

Almost surely, 2^1313447272 is an apocalyptic number.

It is an amenable number.

1313447272 is a deficient number, since it is larger than the sum of its proper divisors (1199924408).

1313447272 is a wasteful number, since it uses less digits than its factorization.

1313447272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5233 (or 5229 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The square root of 1313447272 is about 36241.5131030701. The cubic root of 1313447272 is about 1095.1431245401.

It can be divided in two parts, 13134 and 47272, that added together give a palindrome (60406).

The spelling of 1313447272 in words is "one billion, three hundred thirteen million, four hundred forty-seven thousand, two hundred seventy-two".