1000244213 has 4 divisors (see below), whose sum is σ = 1000316268. Its totient is φ = 1000172160.

The previous prime is 1000244207. The next prime is 1000244243. The reversal of 1000244213 is 3124420001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3124420001 = 7349 ⋅425149.

It can be written as a sum of positive squares in 2 ways, for example, as 857728369 + 142515844 = 29287^2 + 11938^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000244213 - 2⁴ = 1000244197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000244191 and 1000244200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000244243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7868 + ... + 45413.

It is an arithmetic number, because the mean of its divisors is an integer number (250079067).

Almost surely, 2^1000244213 is an apocalyptic number.

It is an amenable number.

1000244213 is a deficient number, since it is larger than the sum of its proper divisors (72055).

1000244213 is an equidigital number, since it uses as much as digits as its factorization.

1000244213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72054.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1000244213 is about 31626.6377125359. The cubic root of 1000244213 is about 1000.0813977076.

Adding to 1000244213 its reverse (3124420001), we get a palindrome (4124664214).

The spelling of 1000244213 in words is "one billion, two hundred forty-four thousand, two hundred thirteen".