12170449 has 4 divisors (see below), whose sum is σ = 12251200. Its totient is φ = 12089700.

The previous prime is 12170441. The next prime is 12170467. The reversal of 12170449 is 94407121.

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 12170449 - 2³ = 12170441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12170441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40149 + ... + 40450.

It is an arithmetic number, because the mean of its divisors is an integer number (3062800).

Almost surely, 2^12170449 is an apocalyptic number.

It is an amenable number.

12170449 is a deficient number, since it is larger than the sum of its proper divisors (80751).

12170449 is an equidigital number, since it uses as much as digits as its factorization.

12170449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80750.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12170449 is about 3488.6170612436. The cubic root of 12170449 is about 230.0217307760.

The spelling of 12170449 in words is "twelve million, one hundred seventy thousand, four hundred forty-nine".