13444133 has 4 divisors (see below), whose sum is σ = 13460748. Its totient is φ = 13427520.

The previous prime is 13444129. The next prime is 13444147. The reversal of 13444133 is 33144431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33144431 = 67 ⋅494693.

It can be written as a sum of positive squares in 2 ways, for example, as 4068289 + 9375844 = 2017^2 + 3062^2 .

It is a cyclic number.

It is not a de Polignac number, because 13444133 - 2² = 13444129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13444099 and 13444108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13444633) 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, 7028 + ... + 8733.

It is an arithmetic number, because the mean of its divisors is an integer number (3365187).

Almost surely, 2^13444133 is an apocalyptic number.

It is an amenable number.

13444133 is a deficient number, since it is larger than the sum of its proper divisors (16615).

13444133 is an equidigital number, since it uses as much as digits as its factorization.

13444133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16614.

The product of its digits is 1728, while the sum is 23.

The square root of 13444133 is about 3666.6241967237. The cubic root of 13444133 is about 237.7812468721.

Adding to 13444133 its reverse (33144431), we get a palindrome (46588564).

The spelling of 13444133 in words is "thirteen million, four hundred forty-four thousand, one hundred thirty-three".