12429229 has 2 divisors, whose sum is σ = 12429230. Its totient is φ = 12429228.

The previous prime is 12429217. The next prime is 12429247. The reversal of 12429229 is 92292421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11573604 + 855625 = 3402^2 + 925^2 .

It is a cyclic number.

It is not a de Polignac number, because 12429229 - 2¹³ = 12421037 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 12429229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12429259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6214614 + 6214615.

It is an arithmetic number, because the mean of its divisors is an integer number (6214615).

Almost surely, 2^12429229 is an apocalyptic number.

It is an amenable number.

12429229 is a deficient number, since it is larger than the sum of its proper divisors (1).

12429229 is an equidigital number, since it uses as much as digits as its factorization.

12429229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 12429229 is about 3525.5111686109. The cubic root of 12429229 is about 231.6406259799.

The spelling of 12429229 in words is "twelve million, four hundred twenty-nine thousand, two hundred twenty-nine".