12651133 has 4 divisors (see below), whose sum is σ = 13801248. Its totient is φ = 11501020.

The previous prime is 12651103. The next prime is 12651161. The reversal of 12651133 is 33115621.

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.

It is a cyclic number.

It is not a de Polignac number, because 12651133 - 2⁵ = 12651101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12651103) 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, 575041 + ... + 575062.

It is an arithmetic number, because the mean of its divisors is an integer number (3450312).

Almost surely, 2^12651133 is an apocalyptic number.

It is an amenable number.

12651133 is a deficient number, since it is larger than the sum of its proper divisors (1150115).

12651133 is a wasteful number, since it uses less digits than its factorization.

12651133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150114.

The product of its digits is 540, while the sum is 22.

The square root of 12651133 is about 3556.8431227705. The cubic root of 12651133 is about 233.0110268809.

Adding to 12651133 its reverse (33115621), we get a palindrome (45766754).

The spelling of 12651133 in words is "twelve million, six hundred fifty-one thousand, one hundred thirty-three".