100012115 has 16 divisors (see below), whose sum is σ = 137661120. Its totient is φ = 68328960.

The previous prime is 100012111. The next prime is 100012153. The reversal of 100012115 is 511210001.

It is not a de Polignac number, because 100012115 - 2² = 100012111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100012096 and 100012105.

It is not an unprimeable number, because it can be changed into a prime (100012111) 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 15 ways as a sum of consecutive naturals, for example, 4751 + ... + 14919.

It is an arithmetic number, because the mean of its divisors is an integer number (8603820).

Almost surely, 2^100012115 is an apocalyptic number.

100012115 is a deficient number, since it is larger than the sum of its proper divisors (37649005).

100012115 is a wasteful number, since it uses less digits than its factorization.

100012115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10462.

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 100012115 is about 10000.6057316545. The cubic root of 100012115 is about 464.1776268873.

Adding to 100012115 its reverse (511210001), we get a palindrome (611222116).

The spelling of 100012115 in words is "one hundred million, twelve thousand, one hundred fifteen".