12171433 has 2 divisors, whose sum is σ = 12171434. Its totient is φ = 12171432.

The previous prime is 12171427. The next prime is 12171469. The reversal of 12171433 is 33417121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7997584 + 4173849 = 2828^2 + 2043^2 .

It is a cyclic number.

It is not a de Polignac number, because 12171433 - 2¹³ = 12163241 is a prime.

It is not a weakly prime, because it can be changed into another prime (12171413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6085716 + 6085717.

It is an arithmetic number, because the mean of its divisors is an integer number (6085717).

Almost surely, 2^12171433 is an apocalyptic number.

It is an amenable number.

12171433 is a deficient number, since it is larger than the sum of its proper divisors (1).

12171433 is an equidigital number, since it uses as much as digits as its factorization.

12171433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 22.

The square root of 12171433 is about 3488.7580884894. The cubic root of 12171433 is about 230.0279298155.

Adding to 12171433 its reverse (33417121), we get a palindrome (45588554).

The spelling of 12171433 in words is "twelve million, one hundred seventy-one thousand, four hundred thirty-three".