1000745791 has 2 divisors, whose sum is σ = 1000745792. Its totient is φ = 1000745790.

The previous prime is 1000745719. The next prime is 1000745797. The reversal of 1000745791 is 1975470001.

Together with previous prime (1000745719) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (1975470001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000745791 - 2⁹ = 1000745279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000745797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500372895 + 500372896.

It is an arithmetic number, because the mean of its divisors is an integer number (500372896).

Almost surely, 2^1000745791 is an apocalyptic number.

1000745791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000745791 is an equidigital number, since it uses as much as digits as its factorization.

1000745791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 1000745791 is about 31634.5663950053. The cubic root of 1000745791 is about 1000.2485352251.

The spelling of 1000745791 in words is "one billion, seven hundred forty-five thousand, seven hundred ninety-one".