1144055 has 24 divisors (see below), whose sum is σ = 1583232. Its totient is φ = 792000.

The previous prime is 1144037. The next prime is 1144061. The reversal of 1144055 is 5504411.

1144055 is nontrivially palindromic in base 9.

It is not a de Polignac number, because 1144055 - 2⁸ = 1143799 is a prime.

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18725 + ... + 18785.

It is an arithmetic number, because the mean of its divisors is an integer number (65968).

2^1144055 is an apocalyptic number.

1144055 is a deficient number, since it is larger than the sum of its proper divisors (439177).

1144055 is a wasteful number, since it uses less digits than its factorization.

1144055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1144055 is about 1069.6050673029. The cubic root of 1144055 is about 104.5881066729.

Adding to 1144055 its reverse (5504411), we get a palindrome (6648466).

The spelling of 1144055 in words is "one million, one hundred forty-four thousand, fifty-five".