1028313106 has 4 divisors (see below), whose sum is σ = 1542469662. Its totient is φ = 514156552.

The previous prime is 1028313101. The next prime is 1028313107. The reversal of 1028313106 is 6013138201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6013138201 = 7 ⋅859019743.

It can be written as a sum of positive squares in only one way, i.e., 704637025 + 323676081 = 26545^2 + 17991^2 .

It is not an unprimeable number, because it can be changed into a prime (1028313101) 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, 257078275 + ... + 257078278.

Almost surely, 2^1028313106 is an apocalyptic number.

1028313106 is a deficient number, since it is larger than the sum of its proper divisors (514156556).

1028313106 is an equidigital number, since it uses as much as digits as its factorization.

1028313106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514156555.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1028313106 is about 32067.3214659410. The cubic root of 1028313106 is about 1009.3500069035.

The spelling of 1028313106 in words is "one billion, twenty-eight million, three hundred thirteen thousand, one hundred six".