1044140213 has 2 divisors, whose sum is σ = 1044140214. Its totient is φ = 1044140212.

The previous prime is 1044140197. The next prime is 1044140239. The reversal of 1044140213 is 3120414401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 849314449 + 194825764 = 29143^2 + 13958^2 .

It is a cyclic number.

It is not a de Polignac number, because 1044140213 - 2⁴ = 1044140197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1044140813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522070106 + 522070107.

It is an arithmetic number, because the mean of its divisors is an integer number (522070107).

Almost surely, 2^1044140213 is an apocalyptic number.

It is an amenable number.

1044140213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044140213 is an equidigital number, since it uses as much as digits as its factorization.

1044140213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1044140213 is about 32313.1585116652. The cubic root of 1044140213 is about 1014.5020774381.

Adding to 1044140213 its reverse (3120414401), we get a palindrome (4164554614).

The spelling of 1044140213 in words is "one billion, forty-four million, one hundred forty thousand, two hundred thirteen".