133403671 has 2 divisors, whose sum is σ = 133403672. Its totient is φ = 133403670.

The previous prime is 133403651. The next prime is 133403689. The reversal of 133403671 is 176304331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133403671 - 2⁵ = 133403639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133403651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66701835 + 66701836.

It is an arithmetic number, because the mean of its divisors is an integer number (66701836).

Almost surely, 2^133403671 is an apocalyptic number.

133403671 is a deficient number, since it is larger than the sum of its proper divisors (1).

133403671 is an equidigital number, since it uses as much as digits as its factorization.

133403671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 133403671 is about 11550.0506925294. The cubic root of 133403671 is about 510.9627731659.

The spelling of 133403671 in words is "one hundred thirty-three million, four hundred three thousand, six hundred seventy-one".