133213313 has 8 divisors (see below), whose sum is σ = 140449920. Its totient is φ = 125999280.

The previous prime is 133213277. The next prime is 133213337. The reversal of 133213313 is 313312331.

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 133213313 - 2¹² = 133209217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133213363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7256 + ... + 17862.

It is an arithmetic number, because the mean of its divisors is an integer number (17556240).

Almost surely, 2^133213313 is an apocalyptic number.

It is an amenable number.

133213313 is a deficient number, since it is larger than the sum of its proper divisors (7236607).

133213313 is a wasteful number, since it uses less digits than its factorization.

133213313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11287.

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

The square root of 133213313 is about 11541.8071808534. The cubic root of 133213313 is about 510.7196210560.

Adding to 133213313 its reverse (313312331), we get a palindrome (446525644).

The spelling of 133213313 in words is "one hundred thirty-three million, two hundred thirteen thousand, three hundred thirteen".