13451443 has 4 divisors (see below), whose sum is σ = 13459480. Its totient is φ = 13443408.

The previous prime is 13451441. The next prime is 13451467. The reversal of 13451443 is 34415431.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34415431 = 29 ⋅1186739.

It is a cyclic number.

It is not a de Polignac number, because 13451443 - 2¹ = 13451441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13451441) 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 3 ways as a sum of consecutive naturals, for example, 453 + ... + 5206.

It is an arithmetic number, because the mean of its divisors is an integer number (3364870).

Almost surely, 2^13451443 is an apocalyptic number.

13451443 is a deficient number, since it is larger than the sum of its proper divisors (8037).

13451443 is an equidigital number, since it uses as much as digits as its factorization.

13451443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8036.

The product of its digits is 2880, while the sum is 25.

The square root of 13451443 is about 3667.6208909864. The cubic root of 13451443 is about 237.8243354565.

Adding to 13451443 its reverse (34415431), we get a palindrome (47866874).

The spelling of 13451443 in words is "thirteen million, four hundred fifty-one thousand, four hundred forty-three".