2543234009 has 2 divisors, whose sum is σ = 2543234010. Its totient is φ = 2543234008.

The previous prime is 2543233981. The next prime is 2543234027. The reversal of 2543234009 is 9004323452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2527273984 + 15960025 = 50272^2 + 3995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2543234009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2543234209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271617004 + 1271617005.

It is an arithmetic number, because the mean of its divisors is an integer number (1271617005).

Almost surely, 2^2543234009 is an apocalyptic number.

It is an amenable number.

2543234009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543234009 is an equidigital number, since it uses as much as digits as its factorization.

2543234009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 2543234009 is about 50430.4869002868. The cubic root of 2543234009 is about 1364.9878138518.

The spelling of 2543234009 in words is "two billion, five hundred forty-three million, two hundred thirty-four thousand, nine".