2112449 has 4 divisors (see below), whose sum is σ = 2115540. Its totient is φ = 2109360.

The previous prime is 2112419. The next prime is 2112469. The reversal of 2112449 is 9442112.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 748225 + 1364224 = 865^2 + 1168^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112449 - 2⁸ = 2112193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112419) 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, 14 + ... + 2055.

It is an arithmetic number, because the mean of its divisors is an integer number (528885).

2^2112449 is an apocalyptic number.

It is an amenable number.

2112449 is a deficient number, since it is larger than the sum of its proper divisors (3091).

2112449 is a wasteful number, since it uses less digits than its factorization.

2112449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090.

The product of its digits is 576, while the sum is 23.

The square root of 2112449 is about 1453.4266407356. The cubic root of 2112449 is about 128.3104646195.

The spelling of 2112449 in words is "two million, one hundred twelve thousand, four hundred forty-nine".