1028210851 has 2 divisors, whose sum is σ = 1028210852. Its totient is φ = 1028210850.

The previous prime is 1028210849. The next prime is 1028210857. The reversal of 1028210851 is 1580128201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1028210851 - 2¹ = 1028210849 is a prime.

It is a super-2 number, since 2×1028210851² = 2114435108228288402, which contains 22 as substring.

Together with 1028210849, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1028210857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514105425 + 514105426.

It is an arithmetic number, because the mean of its divisors is an integer number (514105426).

Almost surely, 2^1028210851 is an apocalyptic number.

1028210851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028210851 is an equidigital number, since it uses as much as digits as its factorization.

1028210851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 28.

The square root of 1028210851 is about 32065.7270461781. The cubic root of 1028210851 is about 1009.3165493552.

The spelling of 1028210851 in words is "one billion, twenty-eight million, two hundred ten thousand, eight hundred fifty-one".