133788163 has 2 divisors, whose sum is σ = 133788164. Its totient is φ = 133788162.

The previous prime is 133788091. The next prime is 133788167. The reversal of 133788163 is 361887331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133788163 - 2⁹ = 133787651 is a prime.

It is not a weakly prime, because it can be changed into another prime (133788167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66894081 + 66894082.

It is an arithmetic number, because the mean of its divisors is an integer number (66894082).

Almost surely, 2^133788163 is an apocalyptic number.

133788163 is a deficient number, since it is larger than the sum of its proper divisors (1).

133788163 is an equidigital number, since it uses as much as digits as its factorization.

133788163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 40.

The square root of 133788163 is about 11566.6833189121. The cubic root of 133788163 is about 511.4531960906.

The spelling of 133788163 in words is "one hundred thirty-three million, seven hundred eighty-eight thousand, one hundred sixty-three".