13365443 has 16 divisors (see below), whose sum is σ = 16556736. Its totient is φ = 10506240.

The previous prime is 13365409. The next prime is 13365479. The reversal of 13365443 is 34456331.

13365443 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13365443 - 2¹⁶ = 13299907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13065443) 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 15 ways as a sum of consecutive naturals, for example, 17183 + ... + 17943.

It is an arithmetic number, because the mean of its divisors is an integer number (1034796).

Almost surely, 2^13365443 is an apocalyptic number.

13365443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13365443 is a deficient number, since it is larger than the sum of its proper divisors (3191293).

13365443 is a wasteful number, since it uses less digits than its factorization.

13365443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974.

The product of its digits is 12960, while the sum is 29.

The square root of 13365443 is about 3655.8778699513. The cubic root of 13365443 is about 237.3164187980.

The spelling of 13365443 in words is "thirteen million, three hundred sixty-five thousand, four hundred forty-three".