12342149 has 2 divisors, whose sum is σ = 12342150. Its totient is φ = 12342148.

The previous prime is 12342073. The next prime is 12342167. The reversal of 12342149 is 94124321.

12342149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11730625 + 611524 = 3425^2 + 782^2 .

It is an emirp because it is prime and its reverse (94124321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12342149 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12342049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6171074 + 6171075.

It is an arithmetic number, because the mean of its divisors is an integer number (6171075).

Almost surely, 2^12342149 is an apocalyptic number.

It is an amenable number.

12342149 is a deficient number, since it is larger than the sum of its proper divisors (1).

12342149 is an equidigital number, since it uses as much as digits as its factorization.

12342149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 12342149 is about 3513.1394791554. The cubic root of 12342149 is about 231.0983945190.

The spelling of 12342149 in words is "twelve million, three hundred forty-two thousand, one hundred forty-nine".