13161441 has 4 divisors (see below), whose sum is σ = 17548592. Its totient is φ = 8774292.

The previous prime is 13161431. The next prime is 13161487. The reversal of 13161441 is 14416131.

13161441 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13161441 - 2⁶ = 13161377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13161431) 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, 2193571 + ... + 2193576.

It is an arithmetic number, because the mean of its divisors is an integer number (4387148).

Almost surely, 2^13161441 is an apocalyptic number.

It is an amenable number.

13161441 is a deficient number, since it is larger than the sum of its proper divisors (4387151).

13161441 is an equidigital number, since it uses as much as digits as its factorization.

13161441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4387150.

The product of its digits is 288, while the sum is 21.

The square root of 13161441 is about 3627.8700362609. The cubic root of 13161441 is about 236.1028052052.

Adding to 13161441 its reverse (14416131), we get a palindrome (27577572).

The spelling of 13161441 in words is "thirteen million, one hundred sixty-one thousand, four hundred forty-one".