133917671 has 2 divisors, whose sum is σ = 133917672. Its totient is φ = 133917670.

The previous prime is 133917629. The next prime is 133917683. The reversal of 133917671 is 176719331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133917671 - 2⁶ = 133917607 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133917611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66958835 + 66958836.

It is an arithmetic number, because the mean of its divisors is an integer number (66958836).

Almost surely, 2^133917671 is an apocalyptic number.

133917671 is a deficient number, since it is larger than the sum of its proper divisors (1).

133917671 is an equidigital number, since it uses as much as digits as its factorization.

133917671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23814, while the sum is 38.

The square root of 133917671 is about 11572.2802852333. The cubic root of 133917671 is about 511.6181731154.

The spelling of 133917671 in words is "one hundred thirty-three million, nine hundred seventeen thousand, six hundred seventy-one".