12127329 has 6 divisors (see below), whose sum is σ = 17517266. Its totient is φ = 8084880.

The previous prime is 12127321. The next prime is 12127331. The reversal of 12127329 is 92372121.

It can be written as a sum of positive squares in only one way, i.e., 12006225 + 121104 = 3465^2 + 348^2 .

It is not a de Polignac number, because 12127329 - 2³ = 12127321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12127321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 673732 + ... + 673749.

Almost surely, 2^12127329 is an apocalyptic number.

It is an amenable number.

12127329 is a deficient number, since it is larger than the sum of its proper divisors (5389937).

12127329 is a wasteful number, since it uses less digits than its factorization.

12127329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347487 (or 1347484 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 12127329 is about 3482.4314781486. The cubic root of 12127329 is about 229.7497530272.

The spelling of 12127329 in words is "twelve million, one hundred twenty-seven thousand, three hundred twenty-nine".