98009161 has 2 divisors, whose sum is σ = 98009162. Its totient is φ = 98009160.

The previous prime is 98009113. The next prime is 98009173. The reversal of 98009161 is 16190089.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97713225 + 295936 = 9885^2 + 544^2 .

It is an emirp because it is prime and its reverse (16190089) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98009161 - 2⁷ = 98009033 is a prime.

It is not a weakly prime, because it can be changed into another prime (98009101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49004580 + 49004581.

It is an arithmetic number, because the mean of its divisors is an integer number (49004581).

Almost surely, 2^98009161 is an apocalyptic number.

It is an amenable number.

98009161 is a deficient number, since it is larger than the sum of its proper divisors (1).

98009161 is an equidigital number, since it uses as much as digits as its factorization.

98009161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 98009161 is about 9899.9576261719. The cubic root of 98009161 is about 461.0579948150.

The spelling of 98009161 in words is "ninety-eight million, nine thousand, one hundred sixty-one".