100206345 has 16 divisors (see below), whose sum is σ = 160581312. Its totient is φ = 53359680.

The previous prime is 100206343. The next prime is 100206371. The reversal of 100206345 is 543602001.

It is a happy number.

It is not a de Polignac number, because 100206345 - 2¹ = 100206343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100206341) 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, 5355 + ... + 15135.

It is an arithmetic number, because the mean of its divisors is an integer number (10036332).

Almost surely, 2^100206345 is an apocalyptic number.

100206345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100206345 is a deficient number, since it is larger than the sum of its proper divisors (60374967).

100206345 is an equidigital number, since it uses as much as digits as its factorization.

100206345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10472.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 100206345 is about 10010.3119332017. The cubic root of 100206345 is about 464.4779202389.

Adding to 100206345 its reverse (543602001), we get a palindrome (643808346).

The spelling of 100206345 in words is "one hundred million, two hundred six thousand, three hundred forty-five".