2175320117 has 2 divisors, whose sum is σ = 2175320118. Its totient is φ = 2175320116.

The previous prime is 2175320099. The next prime is 2175320183. The reversal of 2175320117 is 7110235712.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1508079556 + 667240561 = 38834^2 + 25831^2 .

It is a cyclic number.

It is not a de Polignac number, because 2175320117 - 2¹⁴ = 2175303733 is a prime.

It is a super-2 number, since 2×2175320117² = 9464035222849787378, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2175320117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2175320717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1087660058 + 1087660059.

It is an arithmetic number, because the mean of its divisors is an integer number (1087660059).

Almost surely, 2^2175320117 is an apocalyptic number.

It is an amenable number.

2175320117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2175320117 is an equidigital number, since it uses as much as digits as its factorization.

2175320117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 2175320117 is about 46640.3271536553. The cubic root of 2175320117 is about 1295.7097458527.

Adding to 2175320117 its reverse (7110235712), we get a palindrome (9285555829).

The spelling of 2175320117 in words is "two billion, one hundred seventy-five million, three hundred twenty thousand, one hundred seventeen".