100140238 has 8 divisors (see below), whose sum is σ = 163865880. Its totient is φ = 45518280.

The previous prime is 100140233. The next prime is 100140239. The reversal of 100140238 is 832041001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100140233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2275893 + ... + 2275936.

It is an arithmetic number, because the mean of its divisors is an integer number (20483235).

Almost surely, 2^100140238 is an apocalyptic number.

100140238 is a deficient number, since it is larger than the sum of its proper divisors (63725642).

100140238 is a wasteful number, since it uses less digits than its factorization.

100140238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4551842.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 100140238 is about 10007.0094433852. The cubic root of 100140238 is about 464.3757577244.

Adding to 100140238 its reverse (832041001), we get a palindrome (932181239).

The spelling of 100140238 in words is "one hundred million, one hundred forty thousand, two hundred thirty-eight".