12390029 has 2 divisors, whose sum is σ = 12390030. Its totient is φ = 12390028.

The previous prime is 12390019. The next prime is 12390041. The reversal of 12390029 is 92009321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12264004 + 126025 = 3502^2 + 355^2 .

It is a cyclic number.

It is not a de Polignac number, because 12390029 - 2⁴ = 12390013 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12390019) 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, 6195014 + 6195015.

It is an arithmetic number, because the mean of its divisors is an integer number (6195015).

Almost surely, 2^12390029 is an apocalyptic number.

It is an amenable number.

12390029 is a deficient number, since it is larger than the sum of its proper divisors (1).

12390029 is an equidigital number, since it uses as much as digits as its factorization.

12390029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 12390029 is about 3519.9473007419. The cubic root of 12390029 is about 231.3968491187.

The spelling of 12390029 in words is "twelve million, three hundred ninety thousand, twenty-nine".