133273229 has 2 divisors, whose sum is σ = 133273230. Its totient is φ = 133273228.

The previous prime is 133273213. The next prime is 133273303. The reversal of 133273229 is 922372331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112933129 + 20340100 = 10627^2 + 4510^2 .

It is a cyclic number.

It is not a de Polignac number, because 133273229 - 2⁴ = 133273213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133273195 and 133273204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133276229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66636614 + 66636615.

It is an arithmetic number, because the mean of its divisors is an integer number (66636615).

Almost surely, 2^133273229 is an apocalyptic number.

It is an amenable number.

133273229 is a deficient number, since it is larger than the sum of its proper divisors (1).

133273229 is an equidigital number, since it uses as much as digits as its factorization.

133273229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 32.

The square root of 133273229 is about 11544.4024964482. The cubic root of 133273229 is about 510.7961791956.

The spelling of 133273229 in words is "one hundred thirty-three million, two hundred seventy-three thousand, two hundred twenty-nine".