135986636 has 12 divisors (see below), whose sum is σ = 238065912. Its totient is φ = 67967808.

The previous prime is 135986633. The next prime is 135986657. The reversal of 135986636 is 636689531.

It is not an unprimeable number, because it can be changed into a prime (135986633) 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, 10691 + ... + 19653.

It is an arithmetic number, because the mean of its divisors is an integer number (19838826).

Almost surely, 2^135986636 is an apocalyptic number.

It is an amenable number.

135986636 is a deficient number, since it is larger than the sum of its proper divisors (102079276).

135986636 is a wasteful number, since it uses less digits than its factorization.

135986636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12760 (or 12758 counting only the distinct ones).

The product of its digits is 699840, while the sum is 47.

The square root of 135986636 is about 11661.3307988411. The cubic root of 135986636 is about 514.2394731646.

The spelling of 135986636 in words is "one hundred thirty-five million, nine hundred eighty-six thousand, six hundred thirty-six".