100398213 has 6 divisors (see below), whose sum is σ = 145019654. Its totient is φ = 66932136.

The previous prime is 100398187. The next prime is 100398257. The reversal of 100398213 is 312893001.

It can be written as a sum of positive squares in only one way, i.e., 96000804 + 4397409 = 9798^2 + 2097^2 .

It is not a de Polignac number, because 100398213 - 2⁶ = 100398149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100398283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5577670 + ... + 5577687.

Almost surely, 2^100398213 is an apocalyptic number.

It is an amenable number.

100398213 is a deficient number, since it is larger than the sum of its proper divisors (44621441).

100398213 is a wasteful number, since it uses less digits than its factorization.

100398213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11155363 (or 11155360 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 100398213 is about 10019.8908676692. The cubic root of 100398213 is about 464.7741810222.

The spelling of 100398213 in words is "one hundred million, three hundred ninety-eight thousand, two hundred thirteen".