1147019213 has 2 divisors, whose sum is σ = 1147019214. Its totient is φ = 1147019212.

The previous prime is 1147019207. The next prime is 1147019221. The reversal of 1147019213 is 3129107411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 885776644 + 261242569 = 29762^2 + 16163^2 .

It is an emirp because it is prime and its reverse (3129107411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1147019213 - 2¹⁰ = 1147018189 is a prime.

It is a super-2 number, since 2×1147019213² = 2631306149982278738, which contains 22 as substring.

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 (1147049213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573509606 + 573509607.

It is an arithmetic number, because the mean of its divisors is an integer number (573509607).

Almost surely, 2^1147019213 is an apocalyptic number.

It is an amenable number.

1147019213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147019213 is an equidigital number, since it uses as much as digits as its factorization.

1147019213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1147019213 is about 33867.6720930152. The cubic root of 1147019213 is about 1046.7835701281.

The spelling of 1147019213 in words is "one billion, one hundred forty-seven million, nineteen thousand, two hundred thirteen".