100008213 has 4 divisors (see below), whose sum is σ = 133344288. Its totient is φ = 66672140.

The previous prime is 100008199. The next prime is 100008217. The reversal of 100008213 is 312800001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312800001 = 3 ⋅104266667.

It is a cyclic number.

It is not a de Polignac number, because 100008213 - 2⁹ = 100007701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100008192 and 100008201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100008217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16668033 + ... + 16668038.

It is an arithmetic number, because the mean of its divisors is an integer number (33336072).

Almost surely, 2^100008213 is an apocalyptic number.

It is an amenable number.

100008213 is a deficient number, since it is larger than the sum of its proper divisors (33336075).

100008213 is an equidigital number, since it uses as much as digits as its factorization.

100008213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33336074.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 100008213 is about 10000.4106415687. The cubic root of 100008213 is about 464.1715901364.

Adding to 100008213 its reverse (312800001), we get a palindrome (412808214).

The spelling of 100008213 in words is "one hundred million, eight thousand, two hundred thirteen".