135068879 has 4 divisors (see below), whose sum is σ = 147347880. Its totient is φ = 122789880.

The previous prime is 135068867. The next prime is 135068881. The reversal of 135068879 is 978860531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135068879 - 2⁸ = 135068623 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 (135068819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6139484 + ... + 6139505.

It is an arithmetic number, because the mean of its divisors is an integer number (36836970).

Almost surely, 2^135068879 is an apocalyptic number.

135068879 is a deficient number, since it is larger than the sum of its proper divisors (12279001).

135068879 is a wasteful number, since it uses less digits than its factorization.

135068879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12279000.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 135068879 is about 11621.9137408604. The cubic root of 135068879 is about 513.0800146753.

The spelling of 135068879 in words is "one hundred thirty-five million, sixty-eight thousand, eight hundred seventy-nine".