98134509 has 12 divisors (see below), whose sum is σ = 143823008. Its totient is φ = 59475240.

The previous prime is 98134507. The next prime is 98134513. The reversal of 98134509 is 90543189.

It is not a de Polignac number, because 98134509 - 2¹ = 98134507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98134507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134809 + ... + 135534.

Almost surely, 2^98134509 is an apocalyptic number.

It is an amenable number.

98134509 is a deficient number, since it is larger than the sum of its proper divisors (45688499).

98134509 is a wasteful number, since it uses less digits than its factorization.

98134509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270368 (or 270357 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 98134509 is about 9906.2863374728. The cubic root of 98134509 is about 461.2544665074.

The spelling of 98134509 in words is "ninety-eight million, one hundred thirty-four thousand, five hundred nine".