98138 has 4 divisors (see below), whose sum is σ = 147210. Its totient is φ = 49068.

The previous prime is 98129. The next prime is 98143. The reversal of 98138 is 83189.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83189 = 41 ⋅2029.

It can be written as a sum of positive squares in only one way, i.e., 97969 + 169 = 313^2 + 13^2 .

It is a Curzon number.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 98138.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24533 + ... + 24536.

2⁹⁸¹³⁸ is an apocalyptic number.

98138 is a deficient number, since it is larger than the sum of its proper divisors (49072).

98138 is a wasteful number, since it uses less digits than its factorization.

98138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49071.

The product of its digits is 1728, while the sum is 29.

The square root of 98138 is about 313.2698517253. The cubic root of 98138 is about 46.1259935940.

The spelling of 98138 in words is "ninety-eight thousand, one hundred thirty-eight".