33641161 has 2 divisors, whose sum is σ = 33641162. Its totient is φ = 33641160.

The previous prime is 33641159. The next prime is 33641183. The reversal of 33641161 is 16114633.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17480761 + 16160400 = 4181^2 + 4020^2 .

It is a cyclic number.

It is not a de Polignac number, because 33641161 - 2¹ = 33641159 is a prime.

It is a super-2 number, since 2×33641161² = 2263455426855842, which contains 22 as substring.

Together with 33641159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (33641261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16820580 + 16820581.

It is an arithmetic number, because the mean of its divisors is an integer number (16820581).

Almost surely, 2^33641161 is an apocalyptic number.

It is an amenable number.

33641161 is a deficient number, since it is larger than the sum of its proper divisors (1).

33641161 is an equidigital number, since it uses as much as digits as its factorization.

33641161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

The square root of 33641161 is about 5800.1000853434. The cubic root of 33641161 is about 322.8174419762.

Adding to 33641161 its reverse (16114633), we get a palindrome (49755794).

The spelling of 33641161 in words is "thirty-three million, six hundred forty-one thousand, one hundred sixty-one".