1028112005 has 8 divisors (see below), whose sum is σ = 1234303224. Its totient is φ = 822110400.

The previous prime is 1028111989. The next prime is 1028112017. The reversal of 1028112005 is 5002118201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52736644 + 975375361 = 7262^2 + 31231^2 .

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

It is not a de Polignac number, because 1028112005 - 2⁴ = 1028111989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35186 + ... + 57395.

It is an arithmetic number, because the mean of its divisors is an integer number (154287903).

Almost surely, 2^1028112005 is an apocalyptic number.

It is an amenable number.

1028112005 is a deficient number, since it is larger than the sum of its proper divisors (206191219).

1028112005 is an equidigital number, since it uses as much as digits as its factorization.

1028112005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94807.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 1028112005 is about 32064.1857061738. The cubic root of 1028112005 is about 1009.2842051135.

The spelling of 1028112005 in words is "one billion, twenty-eight million, one hundred twelve thousand, five".