168135527 has 8 divisors (see below), whose sum is σ = 192343200. Its totient is φ = 143974944.

The previous prime is 168135523. The next prime is 168135553. The reversal of 168135527 is 725531861.

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

It is a cyclic number.

It is not a de Polignac number, because 168135527 - 2² = 168135523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168135521) 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 7 ways as a sum of consecutive naturals, for example, 3752 + ... + 18717.

It is an arithmetic number, because the mean of its divisors is an integer number (24042900).

Almost surely, 2^168135527 is an apocalyptic number.

168135527 is a deficient number, since it is larger than the sum of its proper divisors (24207673).

168135527 is a wasteful number, since it uses less digits than its factorization.

168135527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23545.

The product of its digits is 50400, while the sum is 38.

The square root of 168135527 is about 12966.7084103870. The cubic root of 168135527 is about 551.9331718702.

The spelling of 168135527 in words is "one hundred sixty-eight million, one hundred thirty-five thousand, five hundred twenty-seven".