165006533 has 2 divisors, whose sum is σ = 165006534. Its totient is φ = 165006532.

The previous prime is 165006497. The next prime is 165006547. The reversal of 165006533 is 335600561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160604929 + 4401604 = 12673^2 + 2098^2 .

It is a cyclic number.

It is not a de Polignac number, because 165006533 - 2¹⁰ = 165005509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165006496 and 165006505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165006553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82503266 + 82503267.

It is an arithmetic number, because the mean of its divisors is an integer number (82503267).

Almost surely, 2^165006533 is an apocalyptic number.

It is an amenable number.

165006533 is a deficient number, since it is larger than the sum of its proper divisors (1).

165006533 is an equidigital number, since it uses as much as digits as its factorization.

165006533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 165006533 is about 12845.4868728281. The cubic root of 165006533 is about 548.4878939843.

The spelling of 165006533 in words is "one hundred sixty-five million, six thousand, five hundred thirty-three".