12225149 has 2 divisors, whose sum is σ = 12225150. Its totient is φ = 12225148.

The previous prime is 12225107. The next prime is 12225179. The reversal of 12225149 is 94152221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7252249 + 4972900 = 2693^2 + 2230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12225149 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 (12225179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6112574 + 6112575.

It is an arithmetic number, because the mean of its divisors is an integer number (6112575).

Almost surely, 2^12225149 is an apocalyptic number.

It is an amenable number.

12225149 is a deficient number, since it is larger than the sum of its proper divisors (1).

12225149 is an equidigital number, since it uses as much as digits as its factorization.

12225149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 26.

The square root of 12225149 is about 3496.4480548122. The cubic root of 12225149 is about 230.3658261449.

The spelling of 12225149 in words is "twelve million, two hundred twenty-five thousand, one hundred forty-nine".