12051449 has 4 divisors (see below), whose sum is σ = 12097536. Its totient is φ = 12005364.

The previous prime is 12051433. The next prime is 12051451. The reversal of 12051449 is 94415021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94415021 = 193 ⋅489197.

It is a cyclic number.

It is not a de Polignac number, because 12051449 - 2⁴ = 12051433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12051409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22649 + ... + 23174.

It is an arithmetic number, because the mean of its divisors is an integer number (3024384).

Almost surely, 2^12051449 is an apocalyptic number.

It is an amenable number.

12051449 is a deficient number, since it is larger than the sum of its proper divisors (46087).

12051449 is an equidigital number, since it uses as much as digits as its factorization.

12051449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46086.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 12051449 is about 3471.5196960409. The cubic root of 12051449 is about 229.2695731478.

The spelling of 12051449 in words is "twelve million, fifty-one thousand, four hundred forty-nine".