12152513 has 2 divisors, whose sum is σ = 12152514. Its totient is φ = 12152512.

The previous prime is 12152449. The next prime is 12152549. The reversal of 12152513 is 31525121.

It is a happy number.

12152513 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9878449 + 2274064 = 3143^2 + 1508^2 .

It is an emirp because it is prime and its reverse (31525121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12152513 - 2⁶ = 12152449 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12152563) 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 as a sum of consecutive naturals, namely, 6076256 + 6076257.

It is an arithmetic number, because the mean of its divisors is an integer number (6076257).

Almost surely, 2^12152513 is an apocalyptic number.

It is an amenable number.

12152513 is a deficient number, since it is larger than the sum of its proper divisors (1).

12152513 is an equidigital number, since it uses as much as digits as its factorization.

12152513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 300, while the sum is 20.

The square root of 12152513 is about 3486.0454672881. The cubic root of 12152513 is about 229.9086783012.

Adding to 12152513 its reverse (31525121), we get a palindrome (43677634).

The spelling of 12152513 in words is "twelve million, one hundred fifty-two thousand, five hundred thirteen".