1144085213 has 2 divisors, whose sum is σ = 1144085214. Its totient is φ = 1144085212.

The previous prime is 1144085203. The next prime is 1144085263. The reversal of 1144085213 is 3125804411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 955242649 + 188842564 = 30907^2 + 13742^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144085213 - 2⁶ = 1144085149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144085203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572042606 + 572042607.

It is an arithmetic number, because the mean of its divisors is an integer number (572042607).

Almost surely, 2^1144085213 is an apocalyptic number.

It is an amenable number.

1144085213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144085213 is an equidigital number, since it uses as much as digits as its factorization.

1144085213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1144085213 is about 33824.3287146988. The cubic root of 1144085213 is about 1045.8902734323.

Adding to 1144085213 its reverse (3125804411), we get a palindrome (4269889624).

The spelling of 1144085213 in words is "one billion, one hundred forty-four million, eighty-five thousand, two hundred thirteen".