12449149 has 4 divisors (see below), whose sum is σ = 12878460. Its totient is φ = 12019840.

The previous prime is 12449147. The next prime is 12449243. The reversal of 12449149 is 94194421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94194421 = 109 ⋅864169.

It can be written as a sum of positive squares in 2 ways, for example, as 10517049 + 1932100 = 3243^2 + 1390^2 .

It is a cyclic number.

It is not a de Polignac number, because 12449149 - 2¹ = 12449147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12449147) 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, 214612 + ... + 214669.

It is an arithmetic number, because the mean of its divisors is an integer number (3219615).

Almost surely, 2^12449149 is an apocalyptic number.

It is an amenable number.

12449149 is a deficient number, since it is larger than the sum of its proper divisors (429311).

12449149 is an equidigital number, since it uses as much as digits as its factorization.

12449149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429310.

The product of its digits is 10368, while the sum is 34.

The square root of 12449149 is about 3528.3351598169. The cubic root of 12449149 is about 231.7643080522.

The spelling of 12449149 in words is "twelve million, four hundred forty-nine thousand, one hundred forty-nine".