98238139 has 2 divisors, whose sum is σ = 98238140. Its totient is φ = 98238138.

The previous prime is 98238089. The next prime is 98238149. The reversal of 98238139 is 93183289.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (93183289) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98238139 - 2¹⁷ = 98107067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 98238095 and 98238104.

It is not a weakly prime, because it can be changed into another prime (98238149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49119069 + 49119070.

It is an arithmetic number, because the mean of its divisors is an integer number (49119070).

Almost surely, 2^98238139 is an apocalyptic number.

98238139 is a deficient number, since it is larger than the sum of its proper divisors (1).

98238139 is an equidigital number, since it uses as much as digits as its factorization.

98238139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 43.

The square root of 98238139 is about 9911.5154744368. The cubic root of 98238139 is about 461.4167708968.

The spelling of 98238139 in words is "ninety-eight million, two hundred thirty-eight thousand, one hundred thirty-nine".