13271243 has 4 divisors (see below), whose sum is σ = 13321968. Its totient is φ = 13220520.

The previous prime is 13271227. The next prime is 13271257. The reversal of 13271243 is 34217231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34217231 = 2339 ⋅14629.

It is a cyclic number.

It is not a de Polignac number, because 13271243 - 2⁴ = 13271227 is a prime.

It is a super-2 number, since 2×13271243² = 352251781530098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13271213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24968 + ... + 25493.

It is an arithmetic number, because the mean of its divisors is an integer number (3330492).

Almost surely, 2^13271243 is an apocalyptic number.

13271243 is a deficient number, since it is larger than the sum of its proper divisors (50725).

13271243 is an equidigital number, since it uses as much as digits as its factorization.

13271243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50724.

The product of its digits is 1008, while the sum is 23.

The square root of 13271243 is about 3642.9717264892. The cubic root of 13271243 is about 236.7575663080.

Adding to 13271243 its reverse (34217231), we get a palindrome (47488474).

It can be divided in two parts, 1327 and 1243, that multiplied together give a palindrome (1649461).

The spelling of 13271243 in words is "thirteen million, two hundred seventy-one thousand, two hundred forty-three".