133413229 has 8 divisors (see below), whose sum is σ = 141370488. Its totient is φ = 125468160.

The previous prime is 133413211. The next prime is 133413233. The reversal of 133413229 is 922314331.

It can be written as a sum of positive squares in 4 ways, for example, as 18966025 + 114447204 = 4355^2 + 10698^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133413229 - 2¹⁷ = 133282157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133413197 and 133413206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133413209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29529 + ... + 33745.

It is an arithmetic number, because the mean of its divisors is an integer number (17671311).

Almost surely, 2^133413229 is an apocalyptic number.

It is an amenable number.

133413229 is a deficient number, since it is larger than the sum of its proper divisors (7957259).

133413229 is a wasteful number, since it uses less digits than its factorization.

133413229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6095.

The product of its digits is 3888, while the sum is 28.

The square root of 133413229 is about 11550.4644495362. The cubic root of 133413229 is about 510.9749758925.

It can be divided in two parts, 1334132 and 29, that added together give a triangular number (1334161 = T₁₆₃₃).

The spelling of 133413229 in words is "one hundred thirty-three million, four hundred thirteen thousand, two hundred twenty-nine".