3128136047 has 2 divisors, whose sum is σ = 3128136048. Its totient is φ = 3128136046.

The previous prime is 3128136043. The next prime is 3128136049. The reversal of 3128136047 is 7406318213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3128136047 - 2² = 3128136043 is a prime.

Together with 3128136049, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3128135998 and 3128136016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3128136043) 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, 1564068023 + 1564068024.

It is an arithmetic number, because the mean of its divisors is an integer number (1564068024).

Almost surely, 2^3128136047 is an apocalyptic number.

3128136047 is a deficient number, since it is larger than the sum of its proper divisors (1).

3128136047 is an equidigital number, since it uses as much as digits as its factorization.

3128136047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 3128136047 is about 55929.7420609107. The cubic root of 3128136047 is about 1462.4977646446.

The spelling of 3128136047 in words is "three billion, one hundred twenty-eight million, one hundred thirty-six thousand, forty-seven".