4561306513 has 4 divisors (see below), whose sum is σ = 4563041508. Its totient is φ = 4559571520.

The previous prime is 4561306493. The next prime is 4561306517. The reversal of 4561306513 is 3156031654.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3156031654 = 2 ⋅1578015827.

It can be written as a sum of positive squares in 2 ways, for example, as 3022470529 + 1538835984 = 54977^2 + 39228^2 .

It is a cyclic number.

It is not a de Polignac number, because 4561306513 - 2¹⁷ = 4561175441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4561306517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863548 + ... + 868813.

It is an arithmetic number, because the mean of its divisors is an integer number (1140760377).

Almost surely, 2^4561306513 is an apocalyptic number.

It is an amenable number.

4561306513 is a deficient number, since it is larger than the sum of its proper divisors (1734995).

4561306513 is a wasteful number, since it uses less digits than its factorization.

4561306513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734994.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 4561306513 is about 67537.4452655710. The cubic root of 4561306513 is about 1658.4272267727.

The spelling of 4561306513 in words is "four billion, five hundred sixty-one million, three hundred six thousand, five hundred thirteen".