98000191 has 2 divisors, whose sum is σ = 98000192. Its totient is φ = 98000190.

The previous prime is 98000153. The next prime is 98000219. The reversal of 98000191 is 19100089.

It is an a-pointer prime, because the next prime (98000219) can be obtained adding 98000191 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98000191 - 2²¹ = 95903039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98000101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49000095 + 49000096.

It is an arithmetic number, because the mean of its divisors is an integer number (49000096).

Almost surely, 2^98000191 is an apocalyptic number.

98000191 is a deficient number, since it is larger than the sum of its proper divisors (1).

98000191 is an equidigital number, since it uses as much as digits as its factorization.

98000191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 98000191 is about 9899.5045835638. The cubic root of 98000191 is about 461.0439287272.

The spelling of 98000191 in words is "ninety-eight million, one hundred ninety-one", and thus it is an aban number.