485128117 has 2 divisors, whose sum is σ = 485128118. Its totient is φ = 485128116.

The previous prime is 485128109. The next prime is 485128129. The reversal of 485128117 is 711821584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 482285521 + 2842596 = 21961^2 + 1686^2 .

It is a cyclic number.

It is not a de Polignac number, because 485128117 - 2³ = 485128109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485128187) 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 as a sum of consecutive naturals, namely, 242564058 + 242564059.

It is an arithmetic number, because the mean of its divisors is an integer number (242564059).

Almost surely, 2^485128117 is an apocalyptic number.

485128117 is the 12717-th hex number.

It is an amenable number.

485128117 is a deficient number, since it is larger than the sum of its proper divisors (1).

485128117 is an equidigital number, since it uses as much as digits as its factorization.

485128117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17920, while the sum is 37.

The square root of 485128117 is about 22025.6241001248. The cubic root of 485128117 is about 785.7519763596.

The spelling of 485128117 in words is "four hundred eighty-five million, one hundred twenty-eight thousand, one hundred seventeen".