1028081 has 2 divisors, whose sum is σ = 1028082. Its totient is φ = 1028080.

The previous prime is 1028063. The next prime is 1028089. The reversal of 1028081 is 1808201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1018081 + 10000 = 1009^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 1028081 - 2⁶ = 1028017 is a prime.

It is a super-2 number, since 2×1028081² = 2113901085122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1028089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514040 + 514041.

It is an arithmetic number, because the mean of its divisors is an integer number (514041).

2^1028081 is an apocalyptic number.

It is an amenable number.

1028081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028081 is an equidigital number, since it uses as much as digits as its factorization.

1028081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 1028081 is about 1013.9432922999. The cubic root of 1028081 is about 100.9274059276.

The spelling of 1028081 in words is "one million, twenty-eight thousand, eighty-one".