100899111 has 16 divisors (see below), whose sum is σ = 138595424. Its totient is φ = 65245824.

The previous prime is 100899089. The next prime is 100899143. The reversal of 100899111 is 111998001.

It is a happy number.

It is not a de Polignac number, because 100899111 - 2⁶ = 100899047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100899151) 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, 40185 + ... + 42621.

It is an arithmetic number, because the mean of its divisors is an integer number (8662214).

Almost surely, 2^100899111 is an apocalyptic number.

100899111 is a deficient number, since it is larger than the sum of its proper divisors (37696313).

100899111 is a wasteful number, since it uses less digits than its factorization.

100899111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850.

The product of its (nonzero) digits is 648, while the sum is 30.

The square root of 100899111 is about 10044.8549516656. The cubic root of 100899111 is about 465.5458360739.

The spelling of 100899111 in words is "one hundred million, eight hundred ninety-nine thousand, one hundred eleven".