13445533 has 4 divisors (see below), whose sum is σ = 13457340. Its totient is φ = 13433728.

The previous prime is 13445527. The next prime is 13445539. The reversal of 13445533 is 33554431.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13445527) and next prime (13445539).

It can be written as a sum of positive squares in 2 ways, for example, as 9903609 + 3541924 = 3147^2 + 1882^2 .

It is a cyclic number.

It is not a de Polignac number, because 13445533 - 2⁹ = 13445021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3988 + ... + 6541.

It is an arithmetic number, because the mean of its divisors is an integer number (3364335).

Almost surely, 2^13445533 is an apocalyptic number.

It is an amenable number.

13445533 is a deficient number, since it is larger than the sum of its proper divisors (11807).

13445533 is a wasteful number, since it uses less digits than its factorization.

13445533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11806.

The product of its digits is 10800, while the sum is 28.

The square root of 13445533 is about 3666.8151030561. The cubic root of 13445533 is about 237.7895003408.

Adding to 13445533 its reverse (33554431), we get a palindrome (46999964).

The spelling of 13445533 in words is "thirteen million, four hundred forty-five thousand, five hundred thirty-three".