133200121 has 2 divisors, whose sum is σ = 133200122. Its totient is φ = 133200120.

The previous prime is 133200097. The next prime is 133200131. The reversal of 133200121 is 121002331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130782096 + 2418025 = 11436^2 + 1555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133200121 is a prime.

It is not a weakly prime, because it can be changed into another prime (133200131) 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, 66600060 + 66600061.

It is an arithmetic number, because the mean of its divisors is an integer number (66600061).

Almost surely, 2^133200121 is an apocalyptic number.

It is an amenable number.

133200121 is a deficient number, since it is larger than the sum of its proper divisors (1).

133200121 is an equidigital number, since it uses as much as digits as its factorization.

133200121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 133200121 is about 11541.2356790770. The cubic root of 133200121 is about 510.7027617910.

Adding to 133200121 its reverse (121002331), we get a palindrome (254202452).

The spelling of 133200121 in words is "one hundred thirty-three million, two hundred thousand, one hundred twenty-one".