13243533 has 8 divisors (see below), whose sum is σ = 18088896. Its totient is φ = 8613600.

The previous prime is 13243471. The next prime is 13243537. The reversal of 13243533 is 33534231.

It is a happy number.

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

It is not a de Polignac number, because 13243533 - 2¹² = 13239437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13243537) 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, 53713 + ... + 53958.

It is an arithmetic number, because the mean of its divisors is an integer number (2261112).

Almost surely, 2^13243533 is an apocalyptic number.

It is an amenable number.

13243533 is a deficient number, since it is larger than the sum of its proper divisors (4845363).

13243533 is a wasteful number, since it uses less digits than its factorization.

13243533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107715.

The product of its digits is 3240, while the sum is 24.

The square root of 13243533 is about 3639.1665254561. The cubic root of 13243533 is about 236.5926703358.

Adding to 13243533 its reverse (33534231), we get a palindrome (46777764).

The spelling of 13243533 in words is "thirteen million, two hundred forty-three thousand, five hundred thirty-three".