133133201 has 2 divisors, whose sum is σ = 133133202. Its totient is φ = 133133200.

The previous prime is 133133197. The next prime is 133133207. The reversal of 133133201 is 102331331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132802576 + 330625 = 11524^2 + 575^2 .

It is a cyclic number.

It is not a de Polignac number, because 133133201 - 2² = 133133197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133133201.

It is not a weakly prime, because it can be changed into another prime (133133207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66566600 + 66566601.

It is an arithmetic number, because the mean of its divisors is an integer number (66566601).

Almost surely, 2^133133201 is an apocalyptic number.

It is an amenable number.

133133201 is a deficient number, since it is larger than the sum of its proper divisors (1).

133133201 is an equidigital number, since it uses as much as digits as its factorization.

133133201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 133133201 is about 11538.3361452161. The cubic root of 133133201 is about 510.6172214437.

Adding to 133133201 its reverse (102331331), we get a palindrome (235464532).

The spelling of 133133201 in words is "one hundred thirty-three million, one hundred thirty-three thousand, two hundred one".