1028077159 has 4 divisors (see below), whose sum is σ = 1088552304. Its totient is φ = 967602016.

The previous prime is 1028077151. The next prime is 1028077189. The reversal of 1028077159 is 9517708201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9517708201 = 79 ⋅120477319.

It is a cyclic number.

It is not a de Polignac number, because 1028077159 - 2³ = 1028077151 is a prime.

It is a super-2 number, since 2×1028077159² = 2113885289715022562, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028077151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30237547 + ... + 30237580.

It is an arithmetic number, because the mean of its divisors is an integer number (272138076).

Almost surely, 2^1028077159 is an apocalyptic number.

1028077159 is a deficient number, since it is larger than the sum of its proper divisors (60475145).

1028077159 is an equidigital number, since it uses as much as digits as its factorization.

1028077159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60475144.

The product of its (nonzero) digits is 35280, while the sum is 40.

The square root of 1028077159 is about 32063.6423227306. The cubic root of 1028077159 is about 1009.2728023628.

The spelling of 1028077159 in words is "one billion, twenty-eight million, seventy-seven thousand, one hundred fifty-nine".