11089143 has 20 divisors (see below), whose sum is σ = 17841208. Its totient is φ = 6823440.

The previous prime is 11089139. The next prime is 11089153. The reversal of 11089143 is 34198011.

It is not a de Polignac number, because 11089143 - 2² = 11089139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11089123) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4213 + ... + 6318.

Almost surely, 2^11089143 is an apocalyptic number.

11089143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11089143 is a deficient number, since it is larger than the sum of its proper divisors (6752065).

11089143 is a wasteful number, since it uses less digits than its factorization.

11089143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10556 (or 10547 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 11089143 is about 3330.0364862866. The cubic root of 11089143 is about 222.9971578931.

It can be divided in two parts, 110 and 89143, that added together give a triangular number (89253 = T₄₂₂).

The spelling of 11089143 in words is "eleven million, eighty-nine thousand, one hundred forty-three".