1144122643 has 2 divisors, whose sum is σ = 1144122644. Its totient is φ = 1144122642.

The previous prime is 1144122599. The next prime is 1144122653. The reversal of 1144122643 is 3462214411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1144122643 - 2⁹ = 1144122131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1144122653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572061321 + 572061322.

It is an arithmetic number, because the mean of its divisors is an integer number (572061322).

Almost surely, 2^1144122643 is an apocalyptic number.

1144122643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144122643 is an equidigital number, since it uses as much as digits as its factorization.

1144122643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 28.

The square root of 1144122643 is about 33824.8820101416. The cubic root of 1144122643 is about 1045.9016791230.

The spelling of 1144122643 in words is "one billion, one hundred forty-four million, one hundred twenty-two thousand, six hundred forty-three".