33225161 has 2 divisors, whose sum is σ = 33225162. Its totient is φ = 33225160.

The previous prime is 33225139. The next prime is 33225163. The reversal of 33225161 is 16152233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28944400 + 4280761 = 5380^2 + 2069^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33225161 is a prime.

It is a super-2 number, since 2×33225161² = 2207822646951842, which contains 22 as substring.

Together with 33225163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33225163) 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 as a sum of consecutive naturals, namely, 16612580 + 16612581.

It is an arithmetic number, because the mean of its divisors is an integer number (16612581).

Almost surely, 2^33225161 is an apocalyptic number.

It is an amenable number.

33225161 is a deficient number, since it is larger than the sum of its proper divisors (1).

33225161 is an equidigital number, since it uses as much as digits as its factorization.

33225161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 33225161 is about 5764.1270804867. The cubic root of 33225161 is about 321.4812868085.

Adding to 33225161 its reverse (16152233), we get a palindrome (49377394).

The spelling of 33225161 in words is "thirty-three million, two hundred twenty-five thousand, one hundred sixty-one".