1000946081 has 2 divisors, whose sum is σ = 1000946082. Its totient is φ = 1000946080.

The previous prime is 1000946027. The next prime is 1000946099. The reversal of 1000946081 is 1806490001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 739024225 + 261921856 = 27185^2 + 16184^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000946081 - 2⁶ = 1000946017 is a prime.

It is a super-2 number, since 2×1000946081² = 2003786114138517122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1000940081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500473040 + 500473041.

It is an arithmetic number, because the mean of its divisors is an integer number (500473041).

Almost surely, 2^1000946081 is an apocalyptic number.

It is an amenable number.

1000946081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000946081 is an equidigital number, since it uses as much as digits as its factorization.

1000946081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1000946081 is about 31637.7319193396. The cubic root of 1000946081 is about 1000.3152609334.

The spelling of 1000946081 in words is "one billion, nine hundred forty-six thousand, eighty-one".