12126633 has 4 divisors (see below), whose sum is σ = 16168848. Its totient is φ = 8084420.

The previous prime is 12126629. The next prime is 12126637. The reversal of 12126633 is 33662121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33662121 = 3 ⋅11220707.

It is an interprime number because it is at equal distance from previous prime (12126629) and next prime (12126637).

It is a cyclic number.

It is not a de Polignac number, because 12126633 - 2² = 12126629 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12126637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2021103 + ... + 2021108.

It is an arithmetic number, because the mean of its divisors is an integer number (4042212).

Almost surely, 2^12126633 is an apocalyptic number.

It is an amenable number.

12126633 is a deficient number, since it is larger than the sum of its proper divisors (4042215).

12126633 is an equidigital number, since it uses as much as digits as its factorization.

12126633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4042214.

The product of its digits is 1296, while the sum is 24.

The square root of 12126633 is about 3482.3315465360. The cubic root of 12126633 is about 229.7453577509.

Adding to 12126633 its reverse (33662121), we get a palindrome (45788754).

The spelling of 12126633 in words is "twelve million, one hundred twenty-six thousand, six hundred thirty-three".