100204995 has 16 divisors (see below), whose sum is σ = 174903552. Its totient is φ = 48584160.

The previous prime is 100204981. The next prime is 100205023. The reversal of 100204995 is 599402001.

It is a happy number.

It is not a de Polignac number, because 100204995 - 2⁵ = 100204963 is a prime.

It is an unprimeable number.

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, 303487 + ... + 303816.

It is an arithmetic number, because the mean of its divisors is an integer number (10931472).

Almost surely, 2^100204995 is an apocalyptic number.

100204995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100204995 is a deficient number, since it is larger than the sum of its proper divisors (74698557).

100204995 is a wasteful number, since it uses less digits than its factorization.

100204995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607322.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 100204995 is about 10010.2445025084. The cubic root of 100204995 is about 464.4758343829.

Adding to 100204995 its reverse (599402001), we get a palindrome (699606996).

The spelling of 100204995 in words is "one hundred million, two hundred four thousand, nine hundred ninety-five".