98539131 has 4 divisors (see below), whose sum is σ = 131385512. Its totient is φ = 65692752.

The previous prime is 98539121. The next prime is 98539139. The reversal of 98539131 is 13193589.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13193589 = 3 ⋅4397863.

It is not a de Polignac number, because 98539131 - 2¹⁰ = 98538107 is a prime.

It is a super-2 number, since 2×98539131² = 19419920676470322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98539131.

It is not an unprimeable number, because it can be changed into a prime (98539139) 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 in 3 ways as a sum of consecutive naturals, for example, 16423186 + ... + 16423191.

It is an arithmetic number, because the mean of its divisors is an integer number (32846378).

Almost surely, 2^98539131 is an apocalyptic number.

98539131 is a deficient number, since it is larger than the sum of its proper divisors (32846381).

98539131 is a wasteful number, since it uses less digits than its factorization.

98539131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32846380.

The product of its digits is 29160, while the sum is 39.

The square root of 98539131 is about 9926.6878161852. The cubic root of 98539131 is about 461.8875356393.

The spelling of 98539131 in words is "ninety-eight million, five hundred thirty-nine thousand, one hundred thirty-one".