1042740071 has 2 divisors, whose sum is σ = 1042740072. Its totient is φ = 1042740070.

The previous prime is 1042740043. The next prime is 1042740077. The reversal of 1042740071 is 1700472401.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042740071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1042740071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042740077) 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, 521370035 + 521370036.

It is an arithmetic number, because the mean of its divisors is an integer number (521370036).

Almost surely, 2^1042740071 is an apocalyptic number.

1042740071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042740071 is an equidigital number, since it uses as much as digits as its factorization.

1042740071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 1042740071 is about 32291.4860450862. The cubic root of 1042740071 is about 1014.0484083681.

The spelling of 1042740071 in words is "one billion, forty-two million, seven hundred forty thousand, seventy-one".