133922171 has 2 divisors, whose sum is σ = 133922172. Its totient is φ = 133922170.

The previous prime is 133922161. The next prime is 133922183. The reversal of 133922171 is 171229331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133922171 is a prime.

It is not a weakly prime, because it can be changed into another prime (133922101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66961085 + 66961086.

It is an arithmetic number, because the mean of its divisors is an integer number (66961086).

Almost surely, 2^133922171 is an apocalyptic number.

133922171 is a deficient number, since it is larger than the sum of its proper divisors (1).

133922171 is an equidigital number, since it uses as much as digits as its factorization.

133922171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 29.

The square root of 133922171 is about 11572.4747137334. The cubic root of 133922171 is about 511.6239036412.

The spelling of 133922171 in words is "one hundred thirty-three million, nine hundred twenty-two thousand, one hundred seventy-one".