13143441 has 4 divisors (see below), whose sum is σ = 17524592. Its totient is φ = 8762292.

The previous prime is 13143407. The next prime is 13143443. The reversal of 13143441 is 14434131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13143441 - 2⁷ = 13143313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13143443) 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, 2190571 + ... + 2190576.

It is an arithmetic number, because the mean of its divisors is an integer number (4381148).

Almost surely, 2^13143441 is an apocalyptic number.

It is an amenable number.

13143441 is a deficient number, since it is larger than the sum of its proper divisors (4381151).

13143441 is an equidigital number, since it uses as much as digits as its factorization.

13143441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4381150.

The product of its digits is 576, while the sum is 21.

The square root of 13143441 is about 3625.3883929863. The cubic root of 13143441 is about 235.9951222299.

Adding to 13143441 its reverse (14434131), we get a palindrome (27577572).

The spelling of 13143441 in words is "thirteen million, one hundred forty-three thousand, four hundred forty-one".