133559243 has 2 divisors, whose sum is σ = 133559244. Its totient is φ = 133559242.

The previous prime is 133559213. The next prime is 133559249. The reversal of 133559243 is 342955331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133559243 - 2²⁰ = 132510667 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (133559249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66779621 + 66779622.

It is an arithmetic number, because the mean of its divisors is an integer number (66779622).

Almost surely, 2^133559243 is an apocalyptic number.

133559243 is a deficient number, since it is larger than the sum of its proper divisors (1).

133559243 is an equidigital number, since it uses as much as digits as its factorization.

133559243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 35.

The square root of 133559243 is about 11556.7834192737. The cubic root of 133559243 is about 511.1613199766.

The spelling of 133559243 in words is "one hundred thirty-three million, five hundred fifty-nine thousand, two hundred forty-three".