2543671313 has 2 divisors, whose sum is σ = 2543671314. Its totient is φ = 2543671312.

The previous prime is 2543671279. The next prime is 2543671327. The reversal of 2543671313 is 3131763452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2281781824 + 261889489 = 47768^2 + 16183^2 .

It is a cyclic number.

It is not a de Polignac number, because 2543671313 - 2¹⁴ = 2543654929 is a prime.

It is not a weakly prime, because it can be changed into another prime (2543671343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271835656 + 1271835657.

It is an arithmetic number, because the mean of its divisors is an integer number (1271835657).

Almost surely, 2^2543671313 is an apocalyptic number.

It is an amenable number.

2543671313 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543671313 is an equidigital number, since it uses as much as digits as its factorization.

2543671313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 35.

The square root of 2543671313 is about 50434.8224245907. The cubic root of 2543671313 is about 1365.0660450093.

The spelling of 2543671313 in words is "two billion, five hundred forty-three million, six hundred seventy-one thousand, three hundred thirteen".