133233313 has 4 divisors (see below), whose sum is σ = 136482948. Its totient is φ = 129983680.

The previous prime is 133233299. The next prime is 133233329. The reversal of 133233313 is 313332331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16744464 + 116488849 = 4092^2 + 10793^2 .

It is a cyclic number.

It is not a de Polignac number, because 133233313 - 2¹⁷ = 133102241 is a prime.

It is a super-2 number, since 2×133233313² = 35502231385911938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133233613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1624756 + ... + 1624837.

It is an arithmetic number, because the mean of its divisors is an integer number (34120737).

Almost surely, 2^133233313 is an apocalyptic number.

It is an amenable number.

133233313 is a deficient number, since it is larger than the sum of its proper divisors (3249635).

133233313 is an equidigital number, since it uses as much as digits as its factorization.

133233313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3249634.

The product of its digits is 1458, while the sum is 22.

The square root of 133233313 is about 11542.6735637806. The cubic root of 133233313 is about 510.7451787651.

Adding to 133233313 its reverse (313332331), we get a palindrome (446565644).

The spelling of 133233313 in words is "one hundred thirty-three million, two hundred thirty-three thousand, three hundred thirteen".