2315064643 has 4 divisors (see below), whose sum is σ = 2322059128. Its totient is φ = 2308070160.

The previous prime is 2315064623. The next prime is 2315064649. The reversal of 2315064643 is 3464605132.

2315064643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2315064643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2315064599 and 2315064608.

It is not an unprimeable number, because it can be changed into a prime (2315064649) 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, 3496746 + ... + 3497407.

It is an arithmetic number, because the mean of its divisors is an integer number (580514782).

Almost surely, 2^2315064643 is an apocalyptic number.

2315064643 is a deficient number, since it is larger than the sum of its proper divisors (6994485).

2315064643 is an equidigital number, since it uses as much as digits as its factorization.

2315064643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6994484.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 2315064643 is about 48115.1186530803. The cubic root of 2315064643 is about 1322.8817975644.

Adding to 2315064643 its reverse (3464605132), we get a palindrome (5779669775).

The spelling of 2315064643 in words is "two billion, three hundred fifteen million, sixty-four thousand, six hundred forty-three".