133632042521 has 2 divisors, whose sum is σ = 133632042522. Its totient is φ = 133632042520.

The previous prime is 133632042503. The next prime is 133632042527. The reversal of 133632042521 is 125240236331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113457817225 + 20174225296 = 336835^2 + 142036^2 .

It is a cyclic number.

It is not a de Polignac number, because 133632042521 - 2¹⁰ = 133632041497 is a prime.

It is not a weakly prime, because it can be changed into another prime (133632042527) 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, 66816021260 + 66816021261.

It is an arithmetic number, because the mean of its divisors is an integer number (66816021261).

Almost surely, 2^133632042521 is an apocalyptic number.

It is an amenable number.

133632042521 is a deficient number, since it is larger than the sum of its proper divisors (1).

133632042521 is an equidigital number, since it uses as much as digits as its factorization.

133632042521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 133632042521 its reverse (125240236331), we get a palindrome (258872278852).

The spelling of 133632042521 in words is "one hundred thirty-three billion, six hundred thirty-two million, forty-two thousand, five hundred twenty-one".