133145041 has 2 divisors, whose sum is σ = 133145042. Its totient is φ = 133145040.

The previous prime is 133145021. The next prime is 133145053. The reversal of 133145041 is 140541331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86564416 + 46580625 = 9304^2 + 6825^2 .

It is a cyclic number.

It is not a de Polignac number, because 133145041 - 2²³ = 124756433 is a prime.

It is not a weakly prime, because it can be changed into another prime (133145021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66572520 + 66572521.

It is an arithmetic number, because the mean of its divisors is an integer number (66572521).

Almost surely, 2^133145041 is an apocalyptic number.

It is an amenable number.

133145041 is a deficient number, since it is larger than the sum of its proper divisors (1).

133145041 is an equidigital number, since it uses as much as digits as its factorization.

133145041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 133145041 is about 11538.8492060517. The cubic root of 133145041 is about 510.6323579853.

Adding to 133145041 its reverse (140541331), we get a palindrome (273686372).

The spelling of 133145041 in words is "one hundred thirty-three million, one hundred forty-five thousand, forty-one".