100238 has 4 divisors (see below), whose sum is σ = 150360. Its totient is φ = 50118.

The previous prime is 100237. The next prime is 100267. The reversal of 100238 is 832001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 832001 = 137 ⋅6073.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25058 + ... + 25061.

It is an arithmetic number, because the mean of its divisors is an integer number (37590).

2¹⁰⁰²³⁸ is an apocalyptic number.

100238 is a deficient number, since it is larger than the sum of its proper divisors (50122).

100238 is an equidigital number, since it uses as much as digits as its factorization.

100238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50121.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 100238 is about 316.6038534194. The cubic root of 100238 is about 46.4526824330.

Adding to 100238 its reverse (832001), we get a palindrome (932239).

The spelling of 100238 in words is "one hundred thousand, two hundred thirty-eight".