135644511 has 8 divisors (see below), whose sum is σ = 182615680. Its totient is φ = 89551512.

The previous prime is 135644507. The next prime is 135644521. The reversal of 135644511 is 115446531.

It is a happy number.

135644511 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 135644511 - 2² = 135644507 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 (135644521) 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, 219181 + ... + 219798.

It is an arithmetic number, because the mean of its divisors is an integer number (22826960).

Almost surely, 2^135644511 is an apocalyptic number.

135644511 is a deficient number, since it is larger than the sum of its proper divisors (46971169).

135644511 is a wasteful number, since it uses less digits than its factorization.

135644511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439085.

The product of its digits is 7200, while the sum is 30.

The square root of 135644511 is about 11646.6523516417. The cubic root of 135644511 is about 513.8078573967.

The spelling of 135644511 in words is "one hundred thirty-five million, six hundred forty-four thousand, five hundred eleven".