133313213 has 8 divisors (see below), whose sum is σ = 146768160. Its totient is φ = 120080880.

The previous prime is 133313161. The next prime is 133313231. The reversal of 133313213 is 312313331.

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

It is a cyclic number.

It is not a de Polignac number, because 133313213 - 2⁶ = 133313149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133313413) 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 in 7 ways as a sum of consecutive naturals, for example, 54395 + ... + 56792.

It is an arithmetic number, because the mean of its divisors is an integer number (18346020).

Almost surely, 2^133313213 is an apocalyptic number.

It is an amenable number.

133313213 is a deficient number, since it is larger than the sum of its proper divisors (13454947).

133313213 is a wasteful number, since it uses less digits than its factorization.

133313213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111307.

The product of its digits is 486, while the sum is 20.

The square root of 133313213 is about 11546.1341149321. The cubic root of 133313213 is about 510.8472563010.

Adding to 133313213 its reverse (312313331), we get a palindrome (445626544).

The spelling of 133313213 in words is "one hundred thirty-three million, three hundred thirteen thousand, two hundred thirteen".