13438533 has 8 divisors (see below), whose sum is σ = 17936896. Its totient is φ = 8949600.

The previous prime is 13438507. The next prime is 13438541. The reversal of 13438533 is 33583431.

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

It is not a de Polignac number, because 13438533 - 2⁸ = 13438277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13438533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13438553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2268 + ... + 5658.

It is an arithmetic number, because the mean of its divisors is an integer number (2242112).

Almost surely, 2^13438533 is an apocalyptic number.

It is an amenable number.

13438533 is a deficient number, since it is larger than the sum of its proper divisors (4498363).

13438533 is a wasteful number, since it uses less digits than its factorization.

13438533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4715.

The product of its digits is 12960, while the sum is 30.

The square root of 13438533 is about 3665.8604719765. The cubic root of 13438533 is about 237.7482272665.

The spelling of 13438533 in words is "thirteen million, four hundred thirty-eight thousand, five hundred thirty-three".