100740138 has 32 divisors (see below), whose sum is σ = 210733056. Its totient is φ = 32044848.

The previous prime is 100740131. The next prime is 100740163. The reversal of 100740138 is 831047001.

It is not an unprimeable number, because it can be changed into a prime (100740131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113131 + ... + 114017.

It is an arithmetic number, because the mean of its divisors is an integer number (6585408).

Almost surely, 2^100740138 is an apocalyptic number.

100740138 is an abundant number, since it is smaller than the sum of its proper divisors (109992918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100740138 is a wasteful number, since it uses less digits than its factorization.

100740138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 100740138 is about 10036.9386767082. The cubic root of 100740138 is about 465.3012084775.

Adding to 100740138 its reverse (831047001), we get a palindrome (931787139).

The spelling of 100740138 in words is "one hundred million, seven hundred forty thousand, one hundred thirty-eight".