12020089 has 3 divisors (see below), whose sum is σ = 12023557. Its totient is φ = 12016622.

The previous prime is 12020083. The next prime is 12020119. The reversal of 12020089 is 98002021.

The square root of 12020089 is 3467.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98002021 = 13 ⋅7538617.

It is not a de Polignac number, because 12020089 - 2⁹ = 12019577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020083) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1734 + ... + 5200.

Almost surely, 2^12020089 is an apocalyptic number.

12020089 is the 3467-th square number.

12020089 is the 1734-th centered octagonal number.

It is an amenable number.

12020089 is a deficient number, since it is larger than the sum of its proper divisors (3468).

12020089 is an frugal number, since it uses more digits than its factorization.

12020089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6934 (or 3467 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The cubic root of 12020089 is about 229.0705337542.

The spelling of 12020089 in words is "twelve million, twenty thousand, eighty-nine".