13271312 has 10 divisors (see below), whose sum is σ = 25713198. Its totient is φ = 6635648.

The previous prime is 13271311. The next prime is 13271341. The reversal of 13271312 is 21317231.

It can be written as a sum of positive squares in only one way, i.e., 11723776 + 1547536 = 3424^2 + 1244^2 .

It is a super-2 number, since 2×13271312² = 352255444402688, which contains 22 as substring.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13271311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414713 + ... + 414744.

Almost surely, 2^13271312 is an apocalyptic number.

It is an amenable number.

13271312 is a deficient number, since it is larger than the sum of its proper divisors (12441886).

13271312 is an equidigital number, since it uses as much as digits as its factorization.

13271312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829465 (or 829459 counting only the distinct ones).

The product of its digits is 252, while the sum is 20.

The square root of 13271312 is about 3642.9811967673. The cubic root of 13271312 is about 236.7579766249.

Adding to 13271312 its reverse (21317231), we get a palindrome (34588543).

The spelling of 13271312 in words is "thirteen million, two hundred seventy-one thousand, three hundred twelve".