68012135 has 8 divisors (see below), whose sum is σ = 81663216. Its totient is φ = 54377280.

The previous prime is 68012117. The next prime is 68012137. The reversal of 68012135 is 53121086.

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

It is a de Polignac number, because none of the positive numbers 2^k-68012135 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 (68012137) 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, 8987 + ... + 14723.

It is an arithmetic number, because the mean of its divisors is an integer number (10207902).

Almost surely, 2^68012135 is an apocalyptic number.

68012135 is a deficient number, since it is larger than the sum of its proper divisors (13651081).

68012135 is a wasteful number, since it uses less digits than its factorization.

68012135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8113.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 68012135 is about 8246.9470108641. The cubic root of 68012135 is about 408.1897885930.

The spelling of 68012135 in words is "sixty-eight million, twelve thousand, one hundred thirty-five".