13542443 has 4 divisors (see below), whose sum is σ = 13979328. Its totient is φ = 13105560.

The previous prime is 13542437. The next prime is 13542467. The reversal of 13542443 is 34424531.

13542443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13542443 - 2⁶ = 13542379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13542413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218396 + ... + 218457.

It is an arithmetic number, because the mean of its divisors is an integer number (3494832).

Almost surely, 2^13542443 is an apocalyptic number.

13542443 is a deficient number, since it is larger than the sum of its proper divisors (436885).

13542443 is an equidigital number, since it uses as much as digits as its factorization.

13542443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436884.

The product of its digits is 5760, while the sum is 26.

The square root of 13542443 is about 3680.0058423867. The cubic root of 13542443 is about 238.3594303121.

Adding to 13542443 its reverse (34424531), we get a palindrome (47966974).

The spelling of 13542443 in words is "thirteen million, five hundred forty-two thousand, four hundred forty-three".