12634121 has 2 divisors, whose sum is σ = 12634122. Its totient is φ = 12634120.

The previous prime is 12634103. The next prime is 12634129. The reversal of 12634121 is 12143621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9610000 + 3024121 = 3100^2 + 1739^2 .

It is a cyclic number.

It is not a de Polignac number, because 12634121 - 2¹⁰ = 12633097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12634093 and 12634102.

It is not a weakly prime, because it can be changed into another prime (12634129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6317060 + 6317061.

It is an arithmetic number, because the mean of its divisors is an integer number (6317061).

Almost surely, 2^12634121 is an apocalyptic number.

It is an amenable number.

12634121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12634121 is an equidigital number, since it uses as much as digits as its factorization.

12634121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

The square root of 12634121 is about 3554.4508717944. The cubic root of 12634121 is about 232.9065365898.

Adding to 12634121 its reverse (12143621), we get a palindrome (24777742).

The spelling of 12634121 in words is "twelve million, six hundred thirty-four thousand, one hundred twenty-one".