3245312645 has 8 divisors (see below), whose sum is σ = 3898225656. Its totient is φ = 2593683136.

The previous prime is 3245312633. The next prime is 3245312663. The reversal of 3245312645 is 5462135423.

It can be written as a sum of positive squares in 4 ways, for example, as 4401604 + 3240911041 = 2098^2 + 56929^2 .

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 3245312645 - 2²⁰ = 3244264069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent 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, 315302 + ... + 325431.

It is an arithmetic number, because the mean of its divisors is an integer number (487278207).

Almost surely, 2^3245312645 is an apocalyptic number.

It is an amenable number.

3245312645 is a deficient number, since it is larger than the sum of its proper divisors (652913011).

3245312645 is a wasteful number, since it uses less digits than its factorization.

3245312645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641751.

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

The square root of 3245312645 is about 56967.6455981814. The cubic root of 3245312645 is about 1480.5355751269.

The spelling of 3245312645 in words is "three billion, two hundred forty-five million, three hundred twelve thousand, six hundred forty-five".