12052089 has 18 divisors (see below), whose sum is σ = 20251530.
Its totient is φ = 6886656.
The previous prime is 12052043. The next prime is 12052093. The reversal of 12052089 is 98025021.
It can be written as a sum of positive squares in only one way, i.e., 10188864 + 1863225 = 3192^2 + 1365^2
It is not a de Polignac number, because 12052089 - 29 = 12051577 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12052009) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13224 + ... + 14105.
It is an arithmetic number, because the mean of its divisors is an integer number (1125085).
Almost surely, 212052089 is an apocalyptic number.
It is an amenable number.
12052089 is a deficient number, since it is larger than the sum of its proper divisors (8199441).
12052089 is a wasteful number, since it uses less digits than its factorization.
12052089 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27349 (or 27339 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 27.
The square root of 12052089 is about 3471.6118734674.
The cubic root of 12052089 is about 229.2736315790.
The spelling of 12052089 in words is "twelve million, fifty-two thousand, eighty-nine".