68109527 has 4 divisors (see below), whose sum is σ = 68223456. Its totient is φ = 67995600.

The previous prime is 68109499. The next prime is 68109529. The reversal of 68109527 is 72590186.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72590186 = 2 ⋅36295093.

It is a cyclic number.

It is not a de Polignac number, because 68109527 - 2⁸ = 68109271 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 (68109529) 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, 56063 + ... + 57264.

It is an arithmetic number, because the mean of its divisors is an integer number (17055864).

Almost surely, 2^68109527 is an apocalyptic number.

68109527 is a deficient number, since it is larger than the sum of its proper divisors (113929).

68109527 is a wasteful number, since it uses less digits than its factorization.

68109527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113928.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 68109527 is about 8252.8496290675. The cubic root of 68109527 is about 408.3845355017.

The spelling of 68109527 in words is "sixty-eight million, one hundred nine thousand, five hundred twenty-seven".