135636447 has 8 divisors (see below), whose sum is σ = 181002544. Its totient is φ = 90347328.

The previous prime is 135636437. The next prime is 135636469. The reversal of 135636447 is 744636531.

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

It is not a de Polignac number, because 135636447 - 2¹¹ = 135634399 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 (135636427) 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, 14998 + ... + 22275.

It is an arithmetic number, because the mean of its divisors is an integer number (22625318).

Almost surely, 2^135636447 is an apocalyptic number.

135636447 is a deficient number, since it is larger than the sum of its proper divisors (45366097).

135636447 is a wasteful number, since it uses less digits than its factorization.

135636447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38489.

The product of its digits is 181440, while the sum is 39.

The square root of 135636447 is about 11646.3061525962. The cubic root of 135636447 is about 513.7976753194.

The spelling of 135636447 in words is "one hundred thirty-five million, six hundred thirty-six thousand, four hundred forty-seven".