3243138185 has 8 divisors (see below), whose sum is σ = 4447732416. Its totient is φ = 2223866160.

The previous prime is 3243138113. The next prime is 3243138193. The reversal of 3243138185 is 5818313423.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3243138185 is a prime.

It is a super-4 number, since 4×3243138185⁴ (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46330511 + ... + 46330580.

It is an arithmetic number, because the mean of its divisors is an integer number (555966552).

Almost surely, 2^3243138185 is an apocalyptic number.

3243138185 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3243138185 is a deficient number, since it is larger than the sum of its proper divisors (1204594231).

3243138185 is an equidigital number, since it uses as much as digits as its factorization.

3243138185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92661103.

The product of its digits is 69120, while the sum is 38.

The square root of 3243138185 is about 56948.5573566179. The cubic root of 3243138185 is about 1480.2048330144.

The spelling of 3243138185 in words is "three billion, two hundred forty-three million, one hundred thirty-eight thousand, one hundred eighty-five".