209146033 has 2 divisors, whose sum is σ = 209146034. Its totient is φ = 209146032.

The previous prime is 209146031. The next prime is 209146051. The reversal of 209146033 is 330641902.

209146033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177875569 + 31270464 = 13337^2 + 5592^2 .

It is a cyclic number.

It is not a de Polignac number, because 209146033 - 2¹ = 209146031 is a prime.

Together with 209146031, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 209145992 and 209146010.

It is not a weakly prime, because it can be changed into another prime (209146031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104573016 + 104573017.

It is an arithmetic number, because the mean of its divisors is an integer number (104573017).

Almost surely, 2^209146033 is an apocalyptic number.

It is an amenable number.

209146033 is a deficient number, since it is larger than the sum of its proper divisors (1).

209146033 is an equidigital number, since it uses as much as digits as its factorization.

209146033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 209146033 is about 14461.8820697722. The cubic root of 209146033 is about 593.5854001650.

Adding to 209146033 its reverse (330641902), we get a palindrome (539787935).

The spelling of 209146033 in words is "two hundred nine million, one hundred forty-six thousand, thirty-three".