12248649 has 24 divisors (see below), whose sum is σ = 20342400. Its totient is φ = 6956928.

The previous prime is 12248647. The next prime is 12248651. The reversal of 12248649 is 94684221.

12248649 is a `hidden beast` number, since 1 + 2 + 2 + 4 + 8 + 649 = 666.

It is an interprime number because it is at equal distance from previous prime (12248647) and next prime (12248651).

It is not a de Polignac number, because 12248649 - 2¹ = 12248647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12248647) 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 23 ways as a sum of consecutive naturals, for example, 12049 + ... + 13025.

It is an arithmetic number, because the mean of its divisors is an integer number (847600).

Almost surely, 2^12248649 is an apocalyptic number.

It is an amenable number.

12248649 is a deficient number, since it is larger than the sum of its proper divisors (8093751).

12248649 is a wasteful number, since it uses less digits than its factorization.

12248649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189 (or 1186 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 12248649 is about 3499.8069946784. The cubic root of 12248649 is about 230.5133398704.

The spelling of 12248649 in words is "twelve million, two hundred forty-eight thousand, six hundred forty-nine".