4645143205 has 4 divisors (see below), whose sum is σ = 5574171852. Its totient is φ = 3716114560.

The previous prime is 4645143203. The next prime is 4645143253. The reversal of 4645143205 is 5023415464.

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 2399236324 + 2245906881 = 48982^2 + 47391^2 .

It is not a de Polignac number, because 4645143205 - 2¹ = 4645143203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4645143203) 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, 464514316 + ... + 464514325.

It is an arithmetic number, because the mean of its divisors is an integer number (1393542963).

Almost surely, 2^4645143205 is an apocalyptic number.

It is an amenable number.

4645143205 is a deficient number, since it is larger than the sum of its proper divisors (929028647).

4645143205 is an equidigital number, since it uses as much as digits as its factorization.

4645143205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929028646.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 4645143205 is about 68155.2874324509. The cubic root of 4645143205 is about 1668.5262201759.

Adding to 4645143205 its reverse (5023415464), we get a palindrome (9668558669).

The spelling of 4645143205 in words is "four billion, six hundred forty-five million, one hundred forty-three thousand, two hundred five".