135691327 has 8 divisors (see below), whose sum is σ = 138272400. Its totient is φ = 133119744.

The previous prime is 135691313. The next prime is 135691333. The reversal of 135691327 is 723196531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135691327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135691307) 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, 30799 + ... + 34927.

It is an arithmetic number, because the mean of its divisors is an integer number (17284050).

Almost surely, 2^135691327 is an apocalyptic number.

135691327 is a deficient number, since it is larger than the sum of its proper divisors (2581073).

135691327 is an equidigital number, since it uses as much as digits as its factorization.

135691327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4745.

The product of its digits is 34020, while the sum is 37.

The square root of 135691327 is about 11648.6620261728. The cubic root of 135691327 is about 513.8669620412.

The spelling of 135691327 in words is "one hundred thirty-five million, six hundred ninety-one thousand, three hundred twenty-seven".