133130441 has 2 divisors, whose sum is σ = 133130442. Its totient is φ = 133130440.

The previous prime is 133130429. The next prime is 133130471. The reversal of 133130441 is 144031331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127351225 + 5779216 = 11285^2 + 2404^2 .

It is a cyclic number.

It is not a de Polignac number, because 133130441 - 2¹⁰ = 133129417 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133130401) 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, 66565220 + 66565221.

It is an arithmetic number, because the mean of its divisors is an integer number (66565221).

Almost surely, 2^133130441 is an apocalyptic number.

It is an amenable number.

133130441 is a deficient number, since it is larger than the sum of its proper divisors (1).

133130441 is an equidigital number, since it uses as much as digits as its factorization.

133130441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 133130441 is about 11538.2165432965. The cubic root of 133130441 is about 510.6136928642.

Adding to 133130441 its reverse (144031331), we get a palindrome (277161772).

The spelling of 133130441 in words is "one hundred thirty-three million, one hundred thirty thousand, four hundred forty-one".