135605683 has 4 divisors (see below), whose sum is σ = 135629680. Its totient is φ = 135581688.

The previous prime is 135605663. The next prime is 135605689. The reversal of 135605683 is 386506531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135605683 - 2¹⁷ = 135474611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135605689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1666 + ... + 16552.

It is an arithmetic number, because the mean of its divisors is an integer number (33907420).

Almost surely, 2^135605683 is an apocalyptic number.

135605683 is a deficient number, since it is larger than the sum of its proper divisors (23997).

135605683 is an equidigital number, since it uses as much as digits as its factorization.

135605683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23996.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 135605683 is about 11644.9853155768. The cubic root of 135605683 is about 513.7588271897.

The spelling of 135605683 in words is "one hundred thirty-five million, six hundred five thousand, six hundred eighty-three".