13253243 has 4 divisors (see below), whose sum is σ = 13350120. Its totient is φ = 13156368.

The previous prime is 13253239. The next prime is 13253249. The reversal of 13253243 is 34235231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34235231 = 1163 ⋅29437.

It is a cyclic number.

It is not a de Polignac number, because 13253243 - 2² = 13253239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13253249) 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, 48233 + ... + 48506.

It is an arithmetic number, because the mean of its divisors is an integer number (3337530).

Almost surely, 2^13253243 is an apocalyptic number.

13253243 is a deficient number, since it is larger than the sum of its proper divisors (96877).

13253243 is an equidigital number, since it uses as much as digits as its factorization.

13253243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96876.

The product of its digits is 2160, while the sum is 23.

The square root of 13253243 is about 3640.5003776954. The cubic root of 13253243 is about 236.6504785154.

Adding to 13253243 its reverse (34235231), we get a palindrome (47488474).

The spelling of 13253243 in words is "thirteen million, two hundred fifty-three thousand, two hundred forty-three".