1028165108 has 6 divisors (see below), whose sum is σ = 1799288946. Its totient is φ = 514082552.

The previous prime is 1028165087. The next prime is 1028165119. The reversal of 1028165108 is 8015618201.

It can be written as a sum of positive squares in only one way, i.e., 773507344 + 254657764 = 27812^2 + 15958^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128520635 + ... + 128520642.

It is an arithmetic number, because the mean of its divisors is an integer number (299881491).

Almost surely, 2^1028165108 is an apocalyptic number.

It is an amenable number.

1028165108 is a deficient number, since it is larger than the sum of its proper divisors (771123838).

1028165108 is a wasteful number, since it uses less digits than its factorization.

1028165108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257041281 (or 257041279 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 32.

The square root of 1028165108 is about 32065.0137689040. The cubic root of 1028165108 is about 1009.3015816562.

The spelling of 1028165108 in words is "one billion, twenty-eight million, one hundred sixty-five thousand, one hundred eight".