3209165345 has 8 divisors (see below), whose sum is σ = 3851451240. Its totient is φ = 2567030400.

The previous prime is 3209165329. The next prime is 3209165389. The reversal of 3209165345 is 5435619023.

It can be written as a sum of positive squares in 4 ways, for example, as 828115729 + 2381049616 = 28777^2 + 48796^2 .

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

It is not a de Polignac number, because 3209165345 - 2⁴ = 3209165329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3209165299 and 3209165308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15995 + ... + 81695.

It is an arithmetic number, because the mean of its divisors is an integer number (481431405).

Almost surely, 2^3209165345 is an apocalyptic number.

It is an amenable number.

3209165345 is a deficient number, since it is larger than the sum of its proper divisors (642285895).

3209165345 is an equidigital number, since it uses as much as digits as its factorization.

3209165345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75475.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 3209165345 is about 56649.4955405606. The cubic root of 3209165345 is about 1475.0181508826.

The spelling of 3209165345 in words is "three billion, two hundred nine million, one hundred sixty-five thousand, three hundred forty-five".