1028159 has 8 divisors (see below), whose sum is σ = 1130880. Its totient is φ = 927000.

The previous prime is 1028149. The next prime is 1028189. The reversal of 1028159 is 9518201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1028159 - 2¹⁶ = 962623 is a prime.

It is a super-2 number, since 2×1028159² = 2114221858562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1352 + ... + 1970.

It is an arithmetic number, because the mean of its divisors is an integer number (141360).

2^1028159 is an apocalyptic number.

1028159 is a deficient number, since it is larger than the sum of its proper divisors (102721).

1028159 is a wasteful number, since it uses less digits than its factorization.

1028159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1028159 is about 1013.9817552599. The cubic root of 1028159 is about 100.9299583006.

The spelling of 1028159 in words is "one million, twenty-eight thousand, one hundred fifty-nine".