1144204111 has 8 divisors (see below), whose sum is σ = 1205273600. Its totient is φ = 1083219480.

The previous prime is 1144204109. The next prime is 1144204129. The reversal of 1144204111 is 1114024411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144204111 - 2¹ = 1144204109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144204151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7480 + ... + 48418.

It is an arithmetic number, because the mean of its divisors is an integer number (150659200).

Almost surely, 2^1144204111 is an apocalyptic number.

1144204111 is the 19530-th hex number.

1144204111 is a deficient number, since it is larger than the sum of its proper divisors (61069489).

1144204111 is a wasteful number, since it uses less digits than its factorization.

1144204111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42429.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1144204111 is about 33826.0862501118. The cubic root of 1144204111 is about 1045.9265032378.

Adding to 1144204111 its reverse (1114024411), we get a palindrome (2258228522).

The spelling of 1144204111 in words is "one billion, one hundred forty-four million, two hundred four thousand, one hundred eleven".