133641271 has 2 divisors, whose sum is σ = 133641272. Its totient is φ = 133641270.

The previous prime is 133641259. The next prime is 133641283. The reversal of 133641271 is 172146331.

It is a balanced prime because it is at equal distance from previous prime (133641259) and next prime (133641283).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133641271 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 (133645271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66820635 + 66820636.

It is an arithmetic number, because the mean of its divisors is an integer number (66820636).

Almost surely, 2^133641271 is an apocalyptic number.

133641271 is a deficient number, since it is larger than the sum of its proper divisors (1).

133641271 is an equidigital number, since it uses as much as digits as its factorization.

133641271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 28.

The square root of 133641271 is about 11560.3317858961. The cubic root of 133641271 is about 511.2659451072.

The spelling of 133641271 in words is "one hundred thirty-three million, six hundred forty-one thousand, two hundred seventy-one".