135618647 has 2 divisors, whose sum is σ = 135618648. Its totient is φ = 135618646.

The previous prime is 135618617. The next prime is 135618709. The reversal of 135618647 is 746816531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135618647 - 2¹⁰ = 135617623 is a prime.

It is a super-2 number, since 2×135618647² = 36784834828221218, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135618617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67809323 + 67809324.

It is an arithmetic number, because the mean of its divisors is an integer number (67809324).

Almost surely, 2^135618647 is an apocalyptic number.

135618647 is a deficient number, since it is larger than the sum of its proper divisors (1).

135618647 is an equidigital number, since it uses as much as digits as its factorization.

135618647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 135618647 is about 11645.5419367241. The cubic root of 135618647 is about 513.7751985714.

The spelling of 135618647 in words is "one hundred thirty-five million, six hundred eighteen thousand, six hundred forty-seven".