100099115 has 16 divisors (see below), whose sum is σ = 121575168. Its totient is φ = 79115616.

The previous prime is 100099091. The next prime is 100099117. The reversal of 100099115 is 511990001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 100099115 - 2²⁴ = 83321899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100099117) 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, 214112 + ... + 214578.

It is an arithmetic number, because the mean of its divisors is an integer number (7598448).

Almost surely, 2^100099115 is an apocalyptic number.

100099115 is a deficient number, since it is larger than the sum of its proper divisors (21476053).

100099115 is a wasteful number, since it uses less digits than its factorization.

100099115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898.

The product of its (nonzero) digits is 405, while the sum is 26.

The square root of 100099115 is about 10004.9545226353. The cubic root of 100099115 is about 464.3121830838.

The spelling of 100099115 in words is "one hundred million, ninety-nine thousand, one hundred fifteen".