3243155705 has 8 divisors (see below), whose sum is σ = 4120715592. Its totient is φ = 2441905408.

The previous prime is 3243155683. The next prime is 3243155717. The reversal of 3243155705 is 5075513423.

It can be written as a sum of positive squares in 4 ways, for example, as 267780496 + 2975375209 = 16364^2 + 54547^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3243155705 - 2¹² = 3243151609 is a prime.

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, 19077302 + ... + 19077471.

It is an arithmetic number, because the mean of its divisors is an integer number (515089449).

Almost surely, 2^3243155705 is an apocalyptic number.

It is an amenable number.

3243155705 is a deficient number, since it is larger than the sum of its proper divisors (877559887).

3243155705 is a wasteful number, since it uses less digits than its factorization.

3243155705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38154795.

The product of its (nonzero) digits is 63000, while the sum is 35.

The square root of 3243155705 is about 56948.7111794464. The cubic root of 3243155705 is about 1480.2074984515.

The spelling of 3243155705 in words is "three billion, two hundred forty-three million, one hundred fifty-five thousand, seven hundred five".