1000841057 has 2 divisors, whose sum is σ = 1000841058. Its totient is φ = 1000841056.

The previous prime is 1000840999. The next prime is 1000841081. The reversal of 1000841057 is 7501480001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 869601121 + 131239936 = 29489^2 + 11456^2 .

It is an emirp because it is prime and its reverse (7501480001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000841057 - 2²² = 996646753 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000841557) 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, 500420528 + 500420529.

It is an arithmetic number, because the mean of its divisors is an integer number (500420529).

Almost surely, 2^1000841057 is an apocalyptic number.

It is an amenable number.

1000841057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000841057 is an equidigital number, since it uses as much as digits as its factorization.

1000841057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 1000841057 is about 31636.0720855166. The cubic root of 1000841057 is about 1000.2802737726.

The spelling of 1000841057 in words is "one billion, eight hundred forty-one thousand, fifty-seven".