2543306345 has 8 divisors (see below), whose sum is σ = 3052244160. Its totient is φ = 2034460720.

The previous prime is 2543306323. The next prime is 2543306357. The reversal of 2543306345 is 5436033452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2543306345 - 2⁶ = 2543306281 is a prime.

It is a Curzon 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, 77666 + ... + 105444.

It is an arithmetic number, because the mean of its divisors is an integer number (381530520).

Almost surely, 2^2543306345 is an apocalyptic number.

It is an amenable number.

2543306345 is a deficient number, since it is larger than the sum of its proper divisors (508937815).

2543306345 is a wasteful number, since it uses less digits than its factorization.

2543306345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46095.

The product of its (nonzero) digits is 129600, while the sum is 35.

The square root of 2543306345 is about 50431.2040804104. The cubic root of 2543306345 is about 1365.0007549630. Note that the first 3 decimals are identical.

Adding to 2543306345 its reverse (5436033452), we get a palindrome (7979339797).

The spelling of 2543306345 in words is "two billion, five hundred forty-three million, three hundred six thousand, three hundred forty-five".