133564163 has 2 divisors, whose sum is σ = 133564164. Its totient is φ = 133564162.

The previous prime is 133564159. The next prime is 133564217. The reversal of 133564163 is 361465331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133564163 - 2² = 133564159 is a prime.

It is not a weakly prime, because it can be changed into another prime (133564103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66782081 + 66782082.

It is an arithmetic number, because the mean of its divisors is an integer number (66782082).

Almost surely, 2^133564163 is an apocalyptic number.

133564163 is a deficient number, since it is larger than the sum of its proper divisors (1).

133564163 is an equidigital number, since it uses as much as digits as its factorization.

133564163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 32.

The square root of 133564163 is about 11556.9962793106. The cubic root of 133564163 is about 511.1675965491.

The spelling of 133564163 in words is "one hundred thirty-three million, five hundred sixty-four thousand, one hundred sixty-three".