133650521 has 2 divisors, whose sum is σ = 133650522. Its totient is φ = 133650520.

The previous prime is 133650509. The next prime is 133650527. The reversal of 133650521 is 125056331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133518025 + 132496 = 11555^2 + 364^2 .

It is a cyclic number.

It is not a de Polignac number, because 133650521 - 2⁶ = 133650457 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133650527) 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, 66825260 + 66825261.

It is an arithmetic number, because the mean of its divisors is an integer number (66825261).

Almost surely, 2^133650521 is an apocalyptic number.

It is an amenable number.

133650521 is a deficient number, since it is larger than the sum of its proper divisors (1).

133650521 is an equidigital number, since it uses as much as digits as its factorization.

133650521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 133650521 is about 11560.7318539961. The cubic root of 133650521 is about 511.2777406173.

The spelling of 133650521 in words is "one hundred thirty-three million, six hundred fifty thousand, five hundred twenty-one".