33230513 has 2 divisors, whose sum is σ = 33230514. Its totient is φ = 33230512.

The previous prime is 33230507. The next prime is 33230537. The reversal of 33230513 is 31503233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26915344 + 6315169 = 5188^2 + 2513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33230513 is a prime.

It is a super-2 number, since 2×33230513² = 2208533988486338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33230573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16615256 + 16615257.

It is an arithmetic number, because the mean of its divisors is an integer number (16615257).

Almost surely, 2^33230513 is an apocalyptic number.

It is an amenable number.

33230513 is a deficient number, since it is larger than the sum of its proper divisors (1).

33230513 is an equidigital number, since it uses as much as digits as its factorization.

33230513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 33230513 is about 5764.5913124869. The cubic root of 33230513 is about 321.4985475773.

Adding to 33230513 its reverse (31503233), we get a palindrome (64733746).

The spelling of 33230513 in words is "thirty-three million, two hundred thirty thousand, five hundred thirteen".