144441133 has 2 divisors, whose sum is σ = 144441134. Its totient is φ = 144441132.

The previous prime is 144441109. The next prime is 144441149. The reversal of 144441133 is 331144441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144048004 + 393129 = 12002^2 + 627^2 .

It is an emirp because it is prime and its reverse (331144441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144441133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144441098 and 144441107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144441733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72220566 + 72220567.

It is an arithmetic number, because the mean of its divisors is an integer number (72220567).

Almost surely, 2^144441133 is an apocalyptic number.

It is an amenable number.

144441133 is a deficient number, since it is larger than the sum of its proper divisors (1).

144441133 is an equidigital number, since it uses as much as digits as its factorization.

144441133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

The square root of 144441133 is about 12018.3664863408. The cubic root of 144441133 is about 524.6829626296.

Adding to 144441133 its reverse (331144441), we get a palindrome (475585574).

The spelling of 144441133 in words is "one hundred forty-four million, four hundred forty-one thousand, one hundred thirty-three".