1143472643 has 2 divisors, whose sum is σ = 1143472644. Its totient is φ = 1143472642.

The previous prime is 1143472619. The next prime is 1143472663. The reversal of 1143472643 is 3462743411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1143472643 - 2⁶ = 1143472579 is a prime.

It is not a weakly prime, because it can be changed into another prime (1143472613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571736321 + 571736322.

It is an arithmetic number, because the mean of its divisors is an integer number (571736322).

Almost surely, 2^1143472643 is an apocalyptic number.

1143472643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143472643 is an equidigital number, since it uses as much as digits as its factorization.

1143472643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 35.

The square root of 1143472643 is about 33815.2723336660. The cubic root of 1143472643 is about 1045.7035753972.

The spelling of 1143472643 in words is "one billion, one hundred forty-three million, four hundred seventy-two thousand, six hundred forty-three".