12532209 has 4 divisors (see below), whose sum is σ = 16709616. Its totient is φ = 8354804.

The previous prime is 12532199. The next prime is 12532237. The reversal of 12532209 is 90223521.

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.

It is a cyclic number.

It is not a de Polignac number, because 12532209 - 2⁴ = 12532193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12532279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2088699 + ... + 2088704.

It is an arithmetic number, because the mean of its divisors is an integer number (4177404).

Almost surely, 2^12532209 is an apocalyptic number.

It is an amenable number.

12532209 is a deficient number, since it is larger than the sum of its proper divisors (4177407).

12532209 is an equidigital number, since it uses as much as digits as its factorization.

12532209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4177406.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 12532209 is about 3540.0860159041. The cubic root of 12532209 is about 232.2786052952.

The spelling of 12532209 in words is "twelve million, five hundred thirty-two thousand, two hundred nine".