33130223 has 12 divisors (see below), whose sum is σ = 38899080. Its totient is φ = 28132272.

The previous prime is 33130217. The next prime is 33130231. The reversal of 33130223 is 32203133.

It is not a de Polignac number, because 33130223 - 2²² = 28935919 is a prime.

It is a super-2 number, since 2×33130223² = 2195223352059458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33130213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2240 + ... + 8442.

It is an arithmetic number, because the mean of its divisors is an integer number (3241590).

Almost surely, 2^33130223 is an apocalyptic number.

33130223 is a deficient number, since it is larger than the sum of its proper divisors (5768857).

33130223 is a wasteful number, since it uses less digits than its factorization.

33130223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6326 (or 6319 counting only the distinct ones).

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

The square root of 33130223 is about 5755.8859439707. The cubic root of 33130223 is about 321.1747931162.

Adding to 33130223 its reverse (32203133), we get a palindrome (65333356).

The spelling of 33130223 in words is "thirty-three million, one hundred thirty thousand, two hundred twenty-three".