12489229 has 2 divisors, whose sum is σ = 12489230. Its totient is φ = 12489228.

The previous prime is 12489167. The next prime is 12489241. The reversal of 12489229 is 92298421.

12489229 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., 8497225 + 3992004 = 2915^2 + 1998^2 .

It is a cyclic number.

It is not a de Polignac number, because 12489229 - 2²¹ = 10392077 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 (12489629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6244614 + 6244615.

It is an arithmetic number, because the mean of its divisors is an integer number (6244615).

Almost surely, 2^12489229 is an apocalyptic number.

It is an amenable number.

12489229 is a deficient number, since it is larger than the sum of its proper divisors (1).

12489229 is an equidigital number, since it uses as much as digits as its factorization.

12489229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 12489229 is about 3534.0103282249. The cubic root of 12489229 is about 232.0127631207.

The spelling of 12489229 in words is "twelve million, four hundred eighty-nine thousand, two hundred twenty-nine".