100838091 has 4 divisors (see below), whose sum is σ = 134450792. Its totient is φ = 67225392.

The previous prime is 100838083. The next prime is 100838093. The reversal of 100838091 is 190838001.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 100838091 - 2³ = 100838083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100838093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16806346 + ... + 16806351.

It is an arithmetic number, because the mean of its divisors is an integer number (33612698).

Almost surely, 2^100838091 is an apocalyptic number.

100838091 is a deficient number, since it is larger than the sum of its proper divisors (33612701).

100838091 is an equidigital number, since it uses as much as digits as its factorization.

100838091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33612700.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 100838091 is about 10041.8171164386. The cubic root of 100838091 is about 465.4519689255.

The spelling of 100838091 in words is "one hundred million, eight hundred thirty-eight thousand, ninety-one".