33445229 has 2 divisors, whose sum is σ = 33445230. Its totient is φ = 33445228.

The previous prime is 33445219. The next prime is 33445231. The reversal of 33445229 is 92254433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20232004 + 13213225 = 4498^2 + 3635^2 .

It is a cyclic number.

It is not a de Polignac number, because 33445229 - 2²⁴ = 16668013 is a prime.

It is a super-2 number, since 2×33445229² = 2237166685724882, which contains 22 as substring.

Together with 33445231, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 33445195 and 33445204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33445219) 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, 16722614 + 16722615.

It is an arithmetic number, because the mean of its divisors is an integer number (16722615).

Almost surely, 2^33445229 is an apocalyptic number.

It is an amenable number.

33445229 is a deficient number, since it is larger than the sum of its proper divisors (1).

33445229 is an equidigital number, since it uses as much as digits as its factorization.

33445229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 32.

The square root of 33445229 is about 5783.1850221137. The cubic root of 33445229 is about 322.1895062613.

The spelling of 33445229 in words is "thirty-three million, four hundred forty-five thousand, two hundred twenty-nine".