1028145851 has 2 divisors, whose sum is σ = 1028145852. Its totient is φ = 1028145850.

The previous prime is 1028145847. The next prime is 1028145883. The reversal of 1028145851 is 1585418201.

1028145851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (1585418201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1028145851 - 2² = 1028145847 is a prime.

It is not a weakly prime, because it can be changed into another prime (1028105851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514072925 + 514072926.

It is an arithmetic number, because the mean of its divisors is an integer number (514072926).

Almost surely, 2^1028145851 is an apocalyptic number.

1028145851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028145851 is an equidigital number, since it uses as much as digits as its factorization.

1028145851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12800, while the sum is 35.

The square root of 1028145851 is about 32064.7134869470. The cubic root of 1028145851 is about 1009.2952803849.

The spelling of 1028145851 in words is "one billion, twenty-eight million, one hundred forty-five thousand, eight hundred fifty-one".