12133309 has 2 divisors, whose sum is σ = 12133310. Its totient is φ = 12133308.

The previous prime is 12133301. The next prime is 12133321. The reversal of 12133309 is 90333121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11799225 + 334084 = 3435^2 + 578^2 .

It is a cyclic number.

It is not a de Polignac number, because 12133309 - 2³ = 12133301 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12133309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12133301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066654 + 6066655.

It is an arithmetic number, because the mean of its divisors is an integer number (6066655).

Almost surely, 2^12133309 is an apocalyptic number.

It is an amenable number.

12133309 is a deficient number, since it is larger than the sum of its proper divisors (1).

12133309 is an equidigital number, since it uses as much as digits as its factorization.

12133309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 12133309 is about 3483.2899678321. The cubic root of 12133309 is about 229.7875101118.

The spelling of 12133309 in words is "twelve million, one hundred thirty-three thousand, three hundred nine".