133020229 has 2 divisors, whose sum is σ = 133020230. Its totient is φ = 133020228.

The previous prime is 133020227. The next prime is 133020241. The reversal of 133020229 is 922020331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80964004 + 52056225 = 8998^2 + 7215^2 .

It is a cyclic number.

It is not a de Polignac number, because 133020229 - 2¹ = 133020227 is a prime.

Together with 133020227, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133020227) 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, 66510114 + 66510115.

It is an arithmetic number, because the mean of its divisors is an integer number (66510115).

Almost surely, 2^133020229 is an apocalyptic number.

It is an amenable number.

133020229 is a deficient number, since it is larger than the sum of its proper divisors (1).

133020229 is an equidigital number, since it uses as much as digits as its factorization.

133020229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 133020229 is about 11533.4395997031. The cubic root of 133020229 is about 510.4727501608.

The spelling of 133020229 in words is "one hundred thirty-three million, twenty thousand, two hundred twenty-nine".