986121229 has 2 divisors, whose sum is σ = 986121230. Its totient is φ = 986121228.

The previous prime is 986121179. The next prime is 986121247. The reversal of 986121229 is 922121689.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 578162025 + 407959204 = 24045^2 + 20198^2 .

It is a cyclic number.

It is not a de Polignac number, because 986121229 - 2²¹ = 984024077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 986121191 and 986121200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (986121259) 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, 493060614 + 493060615.

It is an arithmetic number, because the mean of its divisors is an integer number (493060615).

Almost surely, 2^986121229 is an apocalyptic number.

It is an amenable number.

986121229 is a deficient number, since it is larger than the sum of its proper divisors (1).

986121229 is an equidigital number, since it uses as much as digits as its factorization.

986121229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 40.

The square root of 986121229 is about 31402.5672358169. The cubic root of 986121229 is about 995.3521741831.

The spelling of 986121229 in words is "nine hundred eighty-six million, one hundred twenty-one thousand, two hundred twenty-nine".