1004043213 has 6 divisors (see below), whose sum is σ = 1450284654. Its totient is φ = 669362136.

The previous prime is 1004043199. The next prime is 1004043233. The reversal of 1004043213 is 3123404001.

It can be written as a sum of positive squares in only one way, i.e., 672001929 + 332041284 = 25923^2 + 18222^2 .

It is not a de Polignac number, because 1004043213 - 2⁴ = 1004043197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004043233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55780170 + ... + 55780187.

It is an arithmetic number, because the mean of its divisors is an integer number (241714109).

Almost surely, 2^1004043213 is an apocalyptic number.

It is an amenable number.

1004043213 is a deficient number, since it is larger than the sum of its proper divisors (446241441).

1004043213 is a wasteful number, since it uses less digits than its factorization.

1004043213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111560363 (or 111560360 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1004043213 is about 31686.6409232661. The cubic root of 1004043213 is about 1001.3459253389.

Adding to 1004043213 its reverse (3123404001), we get a palindrome (4127447214).

The spelling of 1004043213 in words is "one billion, four million, forty-three thousand, two hundred thirteen".