1028150281 has 2 divisors, whose sum is σ = 1028150282. Its totient is φ = 1028150280.

The previous prime is 1028150261. The next prime is 1028150341. The reversal of 1028150281 is 1820518201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 931226256 + 96924025 = 30516^2 + 9845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1028150281 is a prime.

It is a super-2 number, since 2×1028150281² = 2114186000640757922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1028150261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514075140 + 514075141.

It is an arithmetic number, because the mean of its divisors is an integer number (514075141).

Almost surely, 2^1028150281 is an apocalyptic number.

It is an amenable number.

1028150281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028150281 is an equidigital number, since it uses as much as digits as its factorization.

1028150281 is an evil number, because the sum of its binary digits is even.

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

The square root of 1028150281 is about 32064.7825659243. The cubic root of 1028150281 is about 1009.2967299755.

Adding to 1028150281 its reverse (1820518201), we get a palindrome (2848668482).

The spelling of 1028150281 in words is "one billion, twenty-eight million, one hundred fifty thousand, two hundred eighty-one".