133683271 has 2 divisors, whose sum is σ = 133683272. Its totient is φ = 133683270.

The previous prime is 133683241. The next prime is 133683281. The reversal of 133683271 is 172386331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133683271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133683241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66841635 + 66841636.

It is an arithmetic number, because the mean of its divisors is an integer number (66841636).

Almost surely, 2^133683271 is an apocalyptic number.

133683271 is a deficient number, since it is larger than the sum of its proper divisors (1).

133683271 is an equidigital number, since it uses as much as digits as its factorization.

133683271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 133683271 is about 11562.1482000535. The cubic root of 133683271 is about 511.3194987249.

The spelling of 133683271 in words is "one hundred thirty-three million, six hundred eighty-three thousand, two hundred seventy-one".