12489249 has 8 divisors (see below), whose sum is σ = 17189632. Its totient is φ = 8057520.

The previous prime is 12489241. The next prime is 12489287. The reversal of 12489249 is 94298421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12489249 - 2³ = 12489241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12489241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67054 + ... + 67239.

It is an arithmetic number, because the mean of its divisors is an integer number (2148704).

Almost surely, 2^12489249 is an apocalyptic number.

It is an amenable number.

12489249 is a deficient number, since it is larger than the sum of its proper divisors (4700383).

12489249 is a wasteful number, since it uses less digits than its factorization.

12489249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134327.

The product of its digits is 41472, while the sum is 39.

The square root of 12489249 is about 3534.0131578702. The cubic root of 12489249 is about 232.0128869675.

The spelling of 12489249 in words is "twelve million, four hundred eighty-nine thousand, two hundred forty-nine".