1028912159 has 8 divisors (see below), whose sum is σ = 1123036752. Its totient is φ = 934885440.

The previous prime is 1028912147. The next prime is 1028912167. The reversal of 1028912159 is 9512198201.

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 a de Polignac number, because none of the positive numbers 2^k-1028912159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028912359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1544 + ... + 45389.

It is an arithmetic number, because the mean of its divisors is an integer number (140379594).

Almost surely, 2^1028912159 is an apocalyptic number.

1028912159 is a deficient number, since it is larger than the sum of its proper divisors (94124593).

1028912159 is a wasteful number, since it uses less digits than its factorization.

1028912159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48937.

The product of its (nonzero) digits is 12960, while the sum is 38.

The square root of 1028912159 is about 32076.6606584912. The cubic root of 1028912159 is about 1009.5459708139.

The spelling of 1028912159 in words is "one billion, twenty-eight million, nine hundred twelve thousand, one hundred fifty-nine".