135983663 has 8 divisors (see below), whose sum is σ = 144218880. Its totient is φ = 127774720.

The previous prime is 135983651. The next prime is 135983677. The reversal of 135983663 is 366389531.

135983663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135983663 - 2⁴ = 135983647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135983623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4658 + ... + 17136.

It is an arithmetic number, because the mean of its divisors is an integer number (18027360).

Almost surely, 2^135983663 is an apocalyptic number.

135983663 is a deficient number, since it is larger than the sum of its proper divisors (8235217).

135983663 is a wasteful number, since it uses less digits than its factorization.

135983663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13137.

The product of its digits is 349920, while the sum is 44.

The square root of 135983663 is about 11661.2033255578. The cubic root of 135983663 is about 514.2357256270.

The spelling of 135983663 in words is "one hundred thirty-five million, nine hundred eighty-three thousand, six hundred sixty-three".