1630117117 has 2 divisors, whose sum is σ = 1630117118. Its totient is φ = 1630117116.

The previous prime is 1630117109. The next prime is 1630117171. The reversal of 1630117117 is 7117110361.

Together with next prime (1630117171) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1598880196 + 31236921 = 39986^2 + 5589^2 .

It is a cyclic number.

It is not a de Polignac number, because 1630117117 - 2³ = 1630117109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1630117417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815058558 + 815058559.

It is an arithmetic number, because the mean of its divisors is an integer number (815058559).

Almost surely, 2^1630117117 is an apocalyptic number.

It is an amenable number.

1630117117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630117117 is an equidigital number, since it uses as much as digits as its factorization.

1630117117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 28.

The square root of 1630117117 is about 40374.7088782074. The cubic root of 1630117117 is about 1176.9001076680.

Adding to 1630117117 its reverse (7117110361), we get a palindrome (8747227478).

The spelling of 1630117117 in words is "one billion, six hundred thirty million, one hundred seventeen thousand, one hundred seventeen".