165802033 has 2 divisors, whose sum is σ = 165802034. Its totient is φ = 165802032.

The previous prime is 165802031. The next prime is 165802057. The reversal of 165802033 is 330208561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127757809 + 38044224 = 11303^2 + 6168^2 .

It is a cyclic number.

It is not a de Polignac number, because 165802033 - 2¹ = 165802031 is a prime.

Together with 165802031, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 165801992 and 165802010.

It is not a weakly prime, because it can be changed into another prime (165802031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82901016 + 82901017.

It is an arithmetic number, because the mean of its divisors is an integer number (82901017).

Almost surely, 2^165802033 is an apocalyptic number.

It is an amenable number.

165802033 is a deficient number, since it is larger than the sum of its proper divisors (1).

165802033 is an equidigital number, since it uses as much as digits as its factorization.

165802033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 165802033 is about 12876.4138252854. The cubic root of 165802033 is about 549.3679052400.

The spelling of 165802033 in words is "one hundred sixty-five million, eight hundred two thousand, thirty-three".