98140481 has 2 divisors, whose sum is σ = 98140482. Its totient is φ = 98140480.

The previous prime is 98140477. The next prime is 98140501. The reversal of 98140481 is 18404189.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90250000 + 7890481 = 9500^2 + 2809^2 .

It is an emirp because it is prime and its reverse (18404189) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98140481 - 2² = 98140477 is a prime.

It is a super-2 number, since 2×98140481² = 19263108021822722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98140381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49070240 + 49070241.

It is an arithmetic number, because the mean of its divisors is an integer number (49070241).

Almost surely, 2^98140481 is an apocalyptic number.

It is an amenable number.

98140481 is a deficient number, since it is larger than the sum of its proper divisors (1).

98140481 is an equidigital number, since it uses as much as digits as its factorization.

98140481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 98140481 is about 9906.5877576489. The cubic root of 98140481 is about 461.2638229028.

The spelling of 98140481 in words is "ninety-eight million, one hundred forty thousand, four hundred eighty-one".