100140243 has 8 divisors (see below), whose sum is σ = 152594688. Its totient is φ = 57222984.

The previous prime is 100140239. The next prime is 100140259. The reversal of 100140243 is 342041001.

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

It is not a de Polignac number, because 100140243 - 2² = 100140239 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 2384271 + ... + 2384312.

It is an arithmetic number, because the mean of its divisors is an integer number (19074336).

Almost surely, 2^100140243 is an apocalyptic number.

100140243 is a deficient number, since it is larger than the sum of its proper divisors (52454445).

100140243 is an equidigital number, since it uses as much as digits as its factorization.

100140243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4768593.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 100140243 is about 10007.0096932101. The cubic root of 100140243 is about 464.3757654531.

Adding to 100140243 its reverse (342041001), we get a palindrome (442181244).

The spelling of 100140243 in words is "one hundred million, one hundred forty thousand, two hundred forty-three".