8123054939 has 2 divisors, whose sum is σ = 8123054940. Its totient is φ = 8123054938.

The previous prime is 8123054897. The next prime is 8123054977. The reversal of 8123054939 is 9394503218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8123054939 - 2²⁰ = 8122006363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8123054939.

It is not a weakly prime, because it can be changed into another prime (8123051939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4061527469 + 4061527470.

It is an arithmetic number, because the mean of its divisors is an integer number (4061527470).

Almost surely, 2^8123054939 is an apocalyptic number.

8123054939 is a deficient number, since it is larger than the sum of its proper divisors (1).

8123054939 is an equidigital number, since it uses as much as digits as its factorization.

8123054939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 8123054939 is about 90127.9919836229. The cubic root of 8123054939 is about 2010.2024448123.

The spelling of 8123054939 in words is "eight billion, one hundred twenty-three million, fifty-four thousand, nine hundred thirty-nine".