12135727 has 2 divisors, whose sum is σ = 12135728. Its totient is φ = 12135726.

The previous prime is 12135701. The next prime is 12135749. The reversal of 12135727 is 72753121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12135727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12135695 and 12135704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12132727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6067863 + 6067864.

It is an arithmetic number, because the mean of its divisors is an integer number (6067864).

Almost surely, 2^12135727 is an apocalyptic number.

12135727 is a deficient number, since it is larger than the sum of its proper divisors (1).

12135727 is an equidigital number, since it uses as much as digits as its factorization.

12135727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2940, while the sum is 28.

The square root of 12135727 is about 3483.6370362023. The cubic root of 12135727 is about 229.8027735846.

Adding to 12135727 its reverse (72753121), we get a palindrome (84888848).

The spelling of 12135727 in words is "twelve million, one hundred thirty-five thousand, seven hundred twenty-seven".