12052447 has 6 divisors (see below), whose sum is σ = 13247864. Its totient is φ = 10956660.

The previous prime is 12052433. The next prime is 12052471. The reversal of 12052447 is 74425021.

It is a de Polignac number, because none of the positive numbers 2^k-12052447 is a prime.

It is a super-2 number, since 2×12052447² = 290522957375618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12055447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49683 + ... + 49924.

Almost surely, 2^12052447 is an apocalyptic number.

12052447 is a deficient number, since it is larger than the sum of its proper divisors (1195417).

12052447 is an equidigital number, since it uses as much as digits as its factorization.

12052447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99629 (or 99618 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 12052447 is about 3471.6634341480. The cubic root of 12052447 is about 229.2759017013.

Adding to 12052447 its reverse (74425021), we get a palindrome (86477468).

The spelling of 12052447 in words is "twelve million, fifty-two thousand, four hundred forty-seven".