33230213 has 4 divisors (see below), whose sum is σ = 34040748. Its totient is φ = 32419680.

The previous prime is 33230167. The next prime is 33230237. The reversal of 33230213 is 31203233.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31203233 = 107 ⋅291619.

It can be written as a sum of positive squares in 2 ways, for example, as 4318084 + 28912129 = 2078^2 + 5377^2 .

It is a cyclic number.

It is not a de Polignac number, because 33230213 - 2⁸ = 33229957 is a prime.

It is a super-2 number, since 2×33230213² = 2208494112050738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33230191 and 33230200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33230243) 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, 405206 + ... + 405287.

It is an arithmetic number, because the mean of its divisors is an integer number (8510187).

Almost surely, 2^33230213 is an apocalyptic number.

It is an amenable number.

33230213 is a deficient number, since it is larger than the sum of its proper divisors (810535).

33230213 is an equidigital number, since it uses as much as digits as its factorization.

33230213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810534.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 33230213 is about 5764.5652915029. The cubic root of 33230213 is about 321.4975800944.

Adding to 33230213 its reverse (31203233), we get a palindrome (64433446).

The spelling of 33230213 in words is "thirty-three million, two hundred thirty thousand, two hundred thirteen".