126030217 has 2 divisors, whose sum is σ = 126030218. Its totient is φ = 126030216.

The previous prime is 126030137. The next prime is 126030239. The reversal of 126030217 is 712030621.

It is an a-pointer prime, because the next prime (126030239) can be obtained adding 126030217 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75064896 + 50965321 = 8664^2 + 7139^2 .

It is a cyclic number.

It is not a de Polignac number, because 126030217 - 2¹¹ = 126028169 is a prime.

It is not a weakly prime, because it can be changed into another prime (126030277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63015108 + 63015109.

It is an arithmetic number, because the mean of its divisors is an integer number (63015109).

Almost surely, 2^126030217 is an apocalyptic number.

It is an amenable number.

126030217 is a deficient number, since it is larger than the sum of its proper divisors (1).

126030217 is an equidigital number, since it uses as much as digits as its factorization.

126030217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 126030217 is about 11226.3180517924. The cubic root of 126030217 is about 501.3698661725.

Adding to 126030217 its reverse (712030621), we get a palindrome (838060838).

The spelling of 126030217 in words is "one hundred twenty-six million, thirty thousand, two hundred seventeen".