12535247 has 2 divisors, whose sum is σ = 12535248. Its totient is φ = 12535246.

The previous prime is 12535219. The next prime is 12535249. The reversal of 12535247 is 74253521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12535247 - 2⁶ = 12535183 is a prime.

Together with 12535249, 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 (12535249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6267623 + 6267624.

It is an arithmetic number, because the mean of its divisors is an integer number (6267624).

Almost surely, 2^12535247 is an apocalyptic number.

12535247 is a deficient number, since it is larger than the sum of its proper divisors (1).

12535247 is an equidigital number, since it uses as much as digits as its factorization.

12535247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 29.

The square root of 12535247 is about 3540.5150755222. The cubic root of 12535247 is about 232.2973730796.

Adding to 12535247 its reverse (74253521), we get a palindrome (86788768).

The spelling of 12535247 in words is "twelve million, five hundred thirty-five thousand, two hundred forty-seven".