100402205 has 16 divisors (see below), whose sum is σ = 127543680. Its totient is φ = 75743808.

The previous prime is 100402177. The next prime is 100402207. The reversal of 100402205 is 502204001.

It is a cyclic number.

It is not a de Polignac number, because 100402205 - 2²² = 96207901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100402205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100402207) 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, 1817 + ... + 14286.

It is an arithmetic number, because the mean of its divisors is an integer number (7971480).

Almost surely, 2^100402205 is an apocalyptic number.

It is an amenable number.

100402205 is a deficient number, since it is larger than the sum of its proper divisors (27141475).

100402205 is a wasteful number, since it uses less digits than its factorization.

100402205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16180.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 100402205 is about 10020.0900694555. The cubic root of 100402205 is about 464.7803410055.

Adding to 100402205 its reverse (502204001), we get a palindrome (602606206).

The spelling of 100402205 in words is "one hundred million, four hundred two thousand, two hundred five".