3205445245 has 4 divisors (see below), whose sum is σ = 3846534300. Its totient is φ = 2564356192.

The previous prime is 3205445233. The next prime is 3205445249. The reversal of 3205445245 is 5425445023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 891739044 + 2313706201 = 29862^2 + 48101^2 .

It is a cyclic number.

It is not a de Polignac number, because 3205445245 - 2¹⁷ = 3205314173 is a prime.

It is a super-2 number, since 2×3205445245² = 20549758437386220050, 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 3205445245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3205445249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320544520 + ... + 320544529.

It is an arithmetic number, because the mean of its divisors is an integer number (961633575).

Almost surely, 2^3205445245 is an apocalyptic number.

It is an amenable number.

3205445245 is a deficient number, since it is larger than the sum of its proper divisors (641089055).

3205445245 is an equidigital number, since it uses as much as digits as its factorization.

3205445245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641089054.

The product of its (nonzero) digits is 96000, while the sum is 34.

The square root of 3205445245 is about 56616.6516583240. The cubic root of 3205445245 is about 1474.4479780516.

The spelling of 3205445245 in words is "three billion, two hundred five million, four hundred forty-five thousand, two hundred forty-five".