3120045305 has 8 divisors (see below), whose sum is σ = 4032058632. Its totient is φ = 2304033408.

The previous prime is 3120045277. The next prime is 3120045323. The reversal of 3120045305 is 5035400213.

It can be written as a sum of positive squares in 4 ways, for example, as 535644736 + 2584400569 = 23144^2 + 50837^2 .

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 3120045305 - 2¹² = 3120041209 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 24000284 + ... + 24000413.

It is an arithmetic number, because the mean of its divisors is an integer number (504007329).

Almost surely, 2^3120045305 is an apocalyptic number.

It is an amenable number.

3120045305 is a deficient number, since it is larger than the sum of its proper divisors (912013327).

3120045305 is a wasteful number, since it uses less digits than its factorization.

3120045305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48000715.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 3120045305 is about 55857.3657184082. The cubic root of 3120045305 is about 1461.2357875312.

Adding to 3120045305 its reverse (5035400213), we get a palindrome (8155445518).

The spelling of 3120045305 in words is "three billion, one hundred twenty million, forty-five thousand, three hundred five".