133659241 has 2 divisors, whose sum is σ = 133659242. Its totient is φ = 133659240.

The previous prime is 133659209. The next prime is 133659263. The reversal of 133659241 is 142956331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116186841 + 17472400 = 10779^2 + 4180^2 .

It is a cyclic number.

It is not a de Polignac number, because 133659241 - 2⁵ = 133659209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133659197 and 133659206.

It is not a weakly prime, because it can be changed into another prime (133659271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66829620 + 66829621.

It is an arithmetic number, because the mean of its divisors is an integer number (66829621).

Almost surely, 2^133659241 is an apocalyptic number.

It is an amenable number.

133659241 is a deficient number, since it is larger than the sum of its proper divisors (1).

133659241 is an equidigital number, since it uses as much as digits as its factorization.

133659241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 34.

The square root of 133659241 is about 11561.1089865981. The cubic root of 133659241 is about 511.2888597782.

The spelling of 133659241 in words is "one hundred thirty-three million, six hundred fifty-nine thousand, two hundred forty-one".