12134239 has 4 divisors (see below), whose sum is σ = 13067656. Its totient is φ = 11200824.

The previous prime is 12134233. The next prime is 12134249. The reversal of 12134239 is 93243121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12134239 - 2¹⁹ = 11609951 is a prime.

It is a super-2 number, since 2×12134239² = 294479512218242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12134233) 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, 466689 + ... + 466714.

It is an arithmetic number, because the mean of its divisors is an integer number (3266914).

Almost surely, 2^12134239 is an apocalyptic number.

12134239 is a deficient number, since it is larger than the sum of its proper divisors (933417).

12134239 is an equidigital number, since it uses as much as digits as its factorization.

12134239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933416.

The product of its digits is 1296, while the sum is 25.

The square root of 12134239 is about 3483.4234597591. The cubic root of 12134239 is about 229.7933809182.

The spelling of 12134239 in words is "twelve million, one hundred thirty-four thousand, two hundred thirty-nine".