133051271 has 2 divisors, whose sum is σ = 133051272. Its totient is φ = 133051270.

The previous prime is 133051267. The next prime is 133051279. The reversal of 133051271 is 172150331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133051271 - 2² = 133051267 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 (133051279) 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 as a sum of consecutive naturals, namely, 66525635 + 66525636.

It is an arithmetic number, because the mean of its divisors is an integer number (66525636).

Almost surely, 2^133051271 is an apocalyptic number.

133051271 is a deficient number, since it is larger than the sum of its proper divisors (1).

133051271 is an equidigital number, since it uses as much as digits as its factorization.

133051271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 133051271 is about 11534.7852602465. The cubic root of 133051271 is about 510.5124555569.

The spelling of 133051271 in words is "one hundred thirty-three million, fifty-one thousand, two hundred seventy-one".