1143441791 has 2 divisors, whose sum is σ = 1143441792. Its totient is φ = 1143441790.

The previous prime is 1143441787. The next prime is 1143441799. The reversal of 1143441791 is 1971443411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1143441791 - 2² = 1143441787 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143441799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571720895 + 571720896.

It is an arithmetic number, because the mean of its divisors is an integer number (571720896).

Almost surely, 2^1143441791 is an apocalyptic number.

1143441791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143441791 is an equidigital number, since it uses as much as digits as its factorization.

1143441791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 1143441791 is about 33814.8161461807. The cubic root of 1143441791 is about 1045.6941706140.

The spelling of 1143441791 in words is "one billion, one hundred forty-three million, four hundred forty-one thousand, seven hundred ninety-one".