3243542165 has 4 divisors (see below), whose sum is σ = 3892250604. Its totient is φ = 2594833728.

The previous prime is 3243542161. The next prime is 3243542167. The reversal of 3243542165 is 5612453423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5612453423 = 17 ⋅330144319.

It can be written as a sum of positive squares in 2 ways, for example, as 1065826609 + 2177715556 = 32647^2 + 46666^2 .

It is a cyclic number.

It is not a de Polignac number, because 3243542165 - 2² = 3243542161 is a prime.

It is a super-2 number, since 2×3243542165² = 21041131552265774450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243542161) 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 in 3 ways as a sum of consecutive naturals, for example, 324354212 + ... + 324354221.

It is an arithmetic number, because the mean of its divisors is an integer number (973062651).

Almost surely, 2^3243542165 is an apocalyptic number.

It is an amenable number.

3243542165 is a deficient number, since it is larger than the sum of its proper divisors (648708439).

3243542165 is an equidigital number, since it uses as much as digits as its factorization.

3243542165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648708438.

The product of its digits is 86400, while the sum is 35.

The square root of 3243542165 is about 56952.1041314542. The cubic root of 3243542165 is about 1480.2662908049.

Adding to 3243542165 its reverse (5612453423), we get a palindrome (8855995588).

The spelling of 3243542165 in words is "three billion, two hundred forty-three million, five hundred forty-two thousand, one hundred sixty-five".