133312229 has 2 divisors, whose sum is σ = 133312230. Its totient is φ = 133312228.

The previous prime is 133312213. The next prime is 133312253. The reversal of 133312229 is 922213331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119399329 + 13912900 = 10927^2 + 3730^2 .

It is a cyclic number.

It is not a de Polignac number, because 133312229 - 2⁴ = 133312213 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 133312198 and 133312207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133312129) 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, 66656114 + 66656115.

It is an arithmetic number, because the mean of its divisors is an integer number (66656115).

Almost surely, 2^133312229 is an apocalyptic number.

It is an amenable number.

133312229 is a deficient number, since it is larger than the sum of its proper divisors (1).

133312229 is an equidigital number, since it uses as much as digits as its factorization.

133312229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 26.

The square root of 133312229 is about 11546.0915031884. The cubic root of 133312229 is about 510.8459994240.

The spelling of 133312229 in words is "one hundred thirty-three million, three hundred twelve thousand, two hundred twenty-nine".