12135677 has 2 divisors, whose sum is σ = 12135678. Its totient is φ = 12135676.

The previous prime is 12135611. The next prime is 12135689. The reversal of 12135677 is 77653121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8491396 + 3644281 = 2914^2 + 1909^2 .

It is a cyclic number.

It is not a de Polignac number, because 12135677 - 2¹⁰ = 12134653 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12135577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6067838 + 6067839.

It is an arithmetic number, because the mean of its divisors is an integer number (6067839).

Almost surely, 2^12135677 is an apocalyptic number.

It is an amenable number.

12135677 is a deficient number, since it is larger than the sum of its proper divisors (1).

12135677 is an equidigital number, since it uses as much as digits as its factorization.

12135677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820, while the sum is 32.

The square root of 12135677 is about 3483.6298597871. The cubic root of 12135677 is about 229.8024579833.

Adding to 12135677 its reverse (77653121), we get a palindrome (89788798).

The spelling of 12135677 in words is "twelve million, one hundred thirty-five thousand, six hundred seventy-seven".