98165161 has 2 divisors, whose sum is σ = 98165162. Its totient is φ = 98165160.

The previous prime is 98165159. The next prime is 98165209. The reversal of 98165161 is 16156189.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50126400 + 48038761 = 7080^2 + 6931^2 .

It is a cyclic number.

It is not a de Polignac number, because 98165161 - 2¹ = 98165159 is a prime.

Together with 98165159, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 98165161.

It is not a weakly prime, because it can be changed into another prime (98165101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49082580 + 49082581.

It is an arithmetic number, because the mean of its divisors is an integer number (49082581).

Almost surely, 2^98165161 is an apocalyptic number.

It is an amenable number.

98165161 is a deficient number, since it is larger than the sum of its proper divisors (1).

98165161 is an equidigital number, since it uses as much as digits as its factorization.

98165161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 37.

The square root of 98165161 is about 9907.8333151098. The cubic root of 98165161 is about 461.3024852940.

The spelling of 98165161 in words is "ninety-eight million, one hundred sixty-five thousand, one hundred sixty-one".