12242647 has 6 divisors (see below), whose sum is σ = 12798632. Its totient is φ = 11709852.

The previous prime is 12242623. The next prime is 12242651. The reversal of 12242647 is 74624221.

It is a happy number.

It is not a de Polignac number, because 12242647 - 2¹⁹ = 11718359 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 (12242617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11043 + ... + 12100.

Almost surely, 2^12242647 is an apocalyptic number.

12242647 is a deficient number, since it is larger than the sum of its proper divisors (555985).

12242647 is an equidigital number, since it uses as much as digits as its factorization.

12242647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23189 (or 23166 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 12242647 is about 3498.9494137526. The cubic root of 12242647 is about 230.4756821904.

Adding to 12242647 its reverse (74624221), we get a palindrome (86866868).

The spelling of 12242647 in words is "twelve million, two hundred forty-two thousand, six hundred forty-seven".