135644135 has 16 divisors (see below), whose sum is σ = 186917760. Its totient is φ = 93457440.

The previous prime is 135644129. The next prime is 135644137. The reversal of 135644135 is 531446531.

135644135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-135644135 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135644137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63857 + ... + 65946.

It is an arithmetic number, because the mean of its divisors is an integer number (11682360).

Almost surely, 2^135644135 is an apocalyptic number.

135644135 is a deficient number, since it is larger than the sum of its proper divisors (51273625).

135644135 is a wasteful number, since it uses less digits than its factorization.

135644135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129838.

The product of its digits is 21600, while the sum is 32.

The square root of 135644135 is about 11646.6362096530. The cubic root of 135644135 is about 513.8073826461.

The spelling of 135644135 in words is "one hundred thirty-five million, six hundred forty-four thousand, one hundred thirty-five".