11144789 has 4 divisors (see below), whose sum is σ = 11154624. Its totient is φ = 11134956.

The previous prime is 11144747. The next prime is 11144797. The reversal of 11144789 is 98744111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98744111 = 59 ⋅1673629.

It is a cyclic number.

It is not a de Polignac number, because 11144789 - 2⁸ = 11144533 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11141789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2957 + ... + 5570.

It is an arithmetic number, because the mean of its divisors is an integer number (2788656).

Almost surely, 2^11144789 is an apocalyptic number.

It is an amenable number.

11144789 is a deficient number, since it is larger than the sum of its proper divisors (9835).

11144789 is an equidigital number, since it uses as much as digits as its factorization.

11144789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9834.

The product of its digits is 8064, while the sum is 35.

The square root of 11144789 is about 3338.3811945313. The cubic root of 11144789 is about 223.3695401807.

The spelling of 11144789 in words is "eleven million, one hundred forty-four thousand, seven hundred eighty-nine".