133068871 has 4 divisors (see below), whose sum is σ = 143304952. Its totient is φ = 122832792.

The previous prime is 133068857. The next prime is 133068899. The reversal of 133068871 is 178860331.

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 133068871 - 2²⁵ = 99514439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133068871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133068811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5118021 + ... + 5118046.

It is an arithmetic number, because the mean of its divisors is an integer number (35826238).

Almost surely, 2^133068871 is an apocalyptic number.

133068871 is a deficient number, since it is larger than the sum of its proper divisors (10236081).

133068871 is a wasteful number, since it uses less digits than its factorization.

133068871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10236080.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 133068871 is about 11535.5481447567. The cubic root of 133068871 is about 510.5349647320.

The spelling of 133068871 in words is "one hundred thirty-three million, sixty-eight thousand, eight hundred seventy-one".