2143825847 has 2 divisors, whose sum is σ = 2143825848. Its totient is φ = 2143825846.

The previous prime is 2143825823. The next prime is 2143825877. The reversal of 2143825847 is 7485283412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2143825847 - 2⁸ = 2143825591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2143825798 and 2143825807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2143825807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071912923 + 1071912924.

It is an arithmetic number, because the mean of its divisors is an integer number (1071912924).

Almost surely, 2^2143825847 is an apocalyptic number.

2143825847 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143825847 is an equidigital number, since it uses as much as digits as its factorization.

2143825847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 430080, while the sum is 44.

The square root of 2143825847 is about 46301.4670069967. The cubic root of 2143825847 is about 1289.4262310244.

The spelling of 2143825847 in words is "two billion, one hundred forty-three million, eight hundred twenty-five thousand, eight hundred forty-seven".