98124209 has 2 divisors, whose sum is σ = 98124210. Its totient is φ = 98124208.

The previous prime is 98124181. The next prime is 98124211. The reversal of 98124209 is 90242189.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91259809 + 6864400 = 9553^2 + 2620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98124209 is a prime.

It is a Sophie Germain prime.

Together with 98124211, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (98124709) 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, 49062104 + 49062105.

It is an arithmetic number, because the mean of its divisors is an integer number (49062105).

Almost surely, 2^98124209 is an apocalyptic number.

It is an amenable number.

98124209 is a deficient number, since it is larger than the sum of its proper divisors (1).

98124209 is an equidigital number, since it uses as much as digits as its factorization.

98124209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 98124209 is about 9905.7664519208. The cubic root of 98124209 is about 461.2383284968.

It can be divided in two parts, 9 and 8124209, that added together give a palindrome (8124218).

The spelling of 98124209 in words is "ninety-eight million, one hundred twenty-four thousand, two hundred nine".