13161444 has 12 divisors (see below), whose sum is σ = 30710064. Its totient is φ = 4387144.

The previous prime is 13161431. The next prime is 13161487. The reversal of 13161444 is 44416131.

13161444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548382 + ... + 548405.

It is an arithmetic number, because the mean of its divisors is an integer number (2559172).

Almost surely, 2^13161444 is an apocalyptic number.

It is an amenable number.

13161444 is an abundant number, since it is smaller than the sum of its proper divisors (17548620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13161444 is a wasteful number, since it uses less digits than its factorization.

13161444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096794 (or 1096792 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 13161444 is about 3627.8704497267. The cubic root of 13161444 is about 236.1028231442.

Adding to 13161444 its reverse (44416131), we get a palindrome (57577575).

The spelling of 13161444 in words is "thirteen million, one hundred sixty-one thousand, four hundred forty-four".