135727838 has 8 divisors (see below), whose sum is σ = 205568688. Its totient is φ = 67204944.

The previous prime is 135727831. The next prime is 135727841. The reversal of 135727838 is 838727531.

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 (135727831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329231 + ... + 329642.

It is an arithmetic number, because the mean of its divisors is an integer number (25696086).

Almost surely, 2^135727838 is an apocalyptic number.

135727838 is a deficient number, since it is larger than the sum of its proper divisors (69840850).

135727838 is a wasteful number, since it uses less digits than its factorization.

135727838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658978.

The product of its digits is 282240, while the sum is 44.

The square root of 135727838 is about 11650.2290964599. The cubic root of 135727838 is about 513.9130473108.

The spelling of 135727838 in words is "one hundred thirty-five million, seven hundred twenty-seven thousand, eight hundred thirty-eight".