135664847 has 2 divisors, whose sum is σ = 135664848. Its totient is φ = 135664846.

The previous prime is 135664831. The next prime is 135664849. The reversal of 135664847 is 748466531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135664847 - 2⁴ = 135664831 is a prime.

Together with 135664849, 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 = 135664798 and 135664807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135664849) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67832423 + 67832424.

It is an arithmetic number, because the mean of its divisors is an integer number (67832424).

Almost surely, 2^135664847 is an apocalyptic number.

135664847 is a deficient number, since it is larger than the sum of its proper divisors (1).

135664847 is an equidigital number, since it uses as much as digits as its factorization.

135664847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 44.

The square root of 135664847 is about 11647.5253594916. The cubic root of 135664847 is about 513.8335330258.

The spelling of 135664847 in words is "one hundred thirty-five million, six hundred sixty-four thousand, eight hundred forty-seven".