12133651 has 2 divisors, whose sum is σ = 12133652. Its totient is φ = 12133650.

The previous prime is 12133643. The next prime is 12133691. The reversal of 12133651 is 15633121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12133651 - 2³ = 12133643 is a prime.

It is not a weakly prime, because it can be changed into another prime (12133621) 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 as a sum of consecutive naturals, namely, 6066825 + 6066826.

It is an arithmetic number, because the mean of its divisors is an integer number (6066826).

Almost surely, 2^12133651 is an apocalyptic number.

12133651 is a deficient number, since it is larger than the sum of its proper divisors (1).

12133651 is an equidigital number, since it uses as much as digits as its factorization.

12133651 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12133651 is about 3483.3390590065. The cubic root of 12133651 is about 229.7896690884.

Adding to 12133651 its reverse (15633121), we get a palindrome (27766772).

The spelling of 12133651 in words is "twelve million, one hundred thirty-three thousand, six hundred fifty-one".