1144093889 has 4 divisors (see below), whose sum is σ = 1171998660. Its totient is φ = 1116189120.

The previous prime is 1144093861. The next prime is 1144093901. The reversal of 1144093889 is 9883904411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9883904411 = 103 ⋅95960237.

It can be written as a sum of positive squares in 2 ways, for example, as 40857664 + 1103236225 = 6392^2 + 33215^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144093889 - 2⁸ = 1144093633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144093859) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13952324 + ... + 13952405.

It is an arithmetic number, because the mean of its divisors is an integer number (292999665).

Almost surely, 2^1144093889 is an apocalyptic number.

It is an amenable number.

1144093889 is a deficient number, since it is larger than the sum of its proper divisors (27904771).

1144093889 is an equidigital number, since it uses as much as digits as its factorization.

1144093889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27904770.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 1144093889 is about 33824.4569653380. The cubic root of 1144093889 is about 1045.8929172101.

The spelling of 1144093889 in words is "one billion, one hundred forty-four million, ninety-three thousand, eight hundred eighty-nine".