133442041 has 2 divisors, whose sum is σ = 133442042. Its totient is φ = 133442040.

The previous prime is 133442033. The next prime is 133442047. The reversal of 133442041 is 140244331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74459641 + 58982400 = 8629^2 + 7680^2 .

It is a cyclic number.

It is not a de Polignac number, because 133442041 - 2³ = 133442033 is a prime.

It is not a weakly prime, because it can be changed into another prime (133442047) 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, 66721020 + 66721021.

It is an arithmetic number, because the mean of its divisors is an integer number (66721021).

Almost surely, 2^133442041 is an apocalyptic number.

It is an amenable number.

133442041 is a deficient number, since it is larger than the sum of its proper divisors (1).

133442041 is an equidigital number, since it uses as much as digits as its factorization.

133442041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 133442041 is about 11551.7116047796. The cubic root of 133442041 is about 511.0117567311.

Adding to 133442041 its reverse (140244331), we get a palindrome (273686372).

The spelling of 133442041 in words is "one hundred thirty-three million, four hundred forty-two thousand, forty-one".