1000000213 has 4 divisors (see below), whose sum is σ = 1001687148. Its totient is φ = 998313280.

The previous prime is 1000000207. The next prime is 1000000223. The reversal of 1000000213 is 3120000001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 731269764 + 268730449 = 27042^2 + 16393^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000000213 - 2⁵ = 1000000181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000000196 and 1000000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000000223) 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, 842578 + ... + 843763.

It is an arithmetic number, because the mean of its divisors is an integer number (250421787).

Almost surely, 2^1000000213 is an apocalyptic number.

It is an amenable number.

1000000213 is a deficient number, since it is larger than the sum of its proper divisors (1686935).

1000000213 is an equidigital number, since it uses as much as digits as its factorization.

1000000213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686934.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 1000000213 is about 31622.7799695093. The cubic root of 1000000213 is about 1000.0000710000. Note that the first 4 decimals are identical.

Adding to 1000000213 its reverse (3120000001), we get a palindrome (4120000214).

The spelling of 1000000213 in words is "one billion, two hundred thirteen", and thus it is an aban number.