1144433213 has 16 divisors (see below), whose sum is σ = 1501923840. Its totient is φ = 844830000.

The previous prime is 1144433209. The next prime is 1144433219. The reversal of 1144433213 is 3123344411.

It is a happy number.

It is not a de Polignac number, because 1144433213 - 2² = 1144433209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144433219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389663 + ... + 392588.

It is an arithmetic number, because the mean of its divisors is an integer number (93870240).

Almost surely, 2^1144433213 is an apocalyptic number.

It is an amenable number.

1144433213 is a deficient number, since it is larger than the sum of its proper divisors (357490627).

1144433213 is a wasteful number, since it uses less digits than its factorization.

1144433213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782288.

The product of its digits is 3456, while the sum is 26.

The square root of 1144433213 is about 33829.4725498344. The cubic root of 1144433213 is about 1045.9963065943.

Adding to 1144433213 its reverse (3123344411), we get a palindrome (4267777624).

The spelling of 1144433213 in words is "one billion, one hundred forty-four million, four hundred thirty-three thousand, two hundred thirteen".