135983686 has 8 divisors (see below), whose sum is σ = 204135984. Its totient is φ = 67938360.

The previous prime is 135983681. The next prime is 135983711. The reversal of 135983686 is 686389531.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135983681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23485 + ... + 28696.

It is an arithmetic number, because the mean of its divisors is an integer number (25516998).

Almost surely, 2^135983686 is an apocalyptic number.

135983686 is a deficient number, since it is larger than the sum of its proper divisors (68152298).

135983686 is a wasteful number, since it uses less digits than its factorization.

135983686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53486.

The product of its digits is 933120, while the sum is 49.

The square root of 135983686 is about 11661.2043117338. The cubic root of 135983686 is about 514.2357546193.

The spelling of 135983686 in words is "one hundred thirty-five million, nine hundred eighty-three thousand, six hundred eighty-six".