12152447 has 2 divisors, whose sum is σ = 12152448. Its totient is φ = 12152446.

The previous prime is 12152443. The next prime is 12152449. The reversal of 12152447 is 74425121.

It is a strong prime.

It is an emirp because it is prime and its reverse (74425121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12152447 - 2² = 12152443 is a prime.

Together with 12152449, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12152443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6076223 + 6076224.

It is an arithmetic number, because the mean of its divisors is an integer number (6076224).

Almost surely, 2^12152447 is an apocalyptic number.

12152447 is a deficient number, since it is larger than the sum of its proper divisors (1).

12152447 is an equidigital number, since it uses as much as digits as its factorization.

12152447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2240, while the sum is 26.

The square root of 12152447 is about 3486.0360009616. The cubic root of 12152447 is about 229.9082620910.

Adding to 12152447 its reverse (74425121), we get a palindrome (86577568).

The spelling of 12152447 in words is "twelve million, one hundred fifty-two thousand, four hundred forty-seven".