13213033 has 4 divisors (see below), whose sum is σ = 13570180. Its totient is φ = 12855888.

The previous prime is 13213001. The next prime is 13213043. The reversal of 13213033 is 33031231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33031231 = 359 ⋅92009.

It can be written as a sum of positive squares in 2 ways, for example, as 11478544 + 1734489 = 3388^2 + 1317^2 .

It is a cyclic number.

It is not a de Polignac number, because 13213033 - 2⁵ = 13213001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13212998 and 13213016.

It is not an unprimeable number, because it can be changed into a prime (13213043) 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 3 ways as a sum of consecutive naturals, for example, 178518 + ... + 178591.

It is an arithmetic number, because the mean of its divisors is an integer number (3392545).

Almost surely, 2^13213033 is an apocalyptic number.

It is an amenable number.

13213033 is a deficient number, since it is larger than the sum of its proper divisors (357147).

13213033 is an equidigital number, since it uses as much as digits as its factorization.

13213033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357146.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 13213033 is about 3634.9735900003. The cubic root of 13213033 is about 236.4109055678.

Adding to 13213033 its reverse (33031231), we get a palindrome (46244264).

The spelling of 13213033 in words is "thirteen million, two hundred thirteen thousand, thirty-three".