33224131 has 4 divisors (see below), whose sum is σ = 33416352. Its totient is φ = 33031912.

The previous prime is 33224129. The next prime is 33224173. The reversal of 33224131 is 13142233.

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

It is a cyclic number.

It is not a de Polignac number, because 33224131 - 2¹ = 33224129 is a prime.

It is a super-2 number, since 2×33224131² = 2207685761410322, 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 = 33224099 and 33224108.

It is not an unprimeable number, because it can be changed into a prime (33224431) 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 3 ways as a sum of consecutive naturals, for example, 95851 + ... + 96196.

It is an arithmetic number, because the mean of its divisors is an integer number (8354088).

Almost surely, 2^33224131 is an apocalyptic number.

33224131 is a deficient number, since it is larger than the sum of its proper divisors (192221).

33224131 is a wasteful number, since it uses less digits than its factorization.

33224131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192220.

The product of its digits is 432, while the sum is 19.

The square root of 33224131 is about 5764.0377340888. The cubic root of 33224131 is about 321.4779647363.

Adding to 33224131 its reverse (13142233), we get a palindrome (46366364).

The spelling of 33224131 in words is "thirty-three million, two hundred twenty-four thousand, one hundred thirty-one".